[nostalgia/core/studio] Make Edit Subsheet popup close on escape press

.liccor.yml

@@ -2,4 +2,4 @@
 source:
 - src
 copyright_notice: |-
-  Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+  Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.

.tracy.json

@@ -1,16 +0,0 @@
-{
-	"init_functions": [
-		{
-			"bin_path": "dist/linux-x86_64-debug/lib/ox/libOxTraceHook.so",
-			"function": "oxTraceInitHook",
-			"ignore_frames": 3
-		}
-	],
-	"log_functions": [
-		{
-			"bin_path": "dist/linux-x86_64-debug/lib/ox/libOxTraceHook.so",
-			"function": "oxTraceHook",
-			"ignore_frames": 3
-		}
-	]
-}

deps/ox/src/ox/claw/read.cpp

@@ -72,8 +72,8 @@ Result<Buffer> stripClawHeader(const ox::Buffer &buff) noexcept {
 	return stripClawHeader(buff.data(), buff.size());
 }
 
-Result<ModelObject> readClaw(TypeStore *ts, const Buffer &buff) noexcept {
+Result<ModelObject> readClaw(TypeStore *ts, const char *buff, std::size_t buffSz) noexcept {
-	oxRequire(header, readClawHeader(buff));
+	oxRequire(header, readClawHeader(buff, buffSz));
 	oxRequire(t, ts->getLoad(header.typeName, header.typeVersion, header.typeParams));
 	ModelObject obj;
 	oxReturnError(obj.setType(t));
@@ -102,4 +102,8 @@ Result<ModelObject> readClaw(TypeStore *ts, const Buffer &buff) noexcept {
 	return OxError(1);
 }
 
+Result<ModelObject> readClaw(TypeStore *ts, const Buffer &buff) noexcept {
+	return readClaw(ts, buff.data(), buff.size());
+}
+
 }

deps/ox/src/ox/claw/read.hpp

@@ -87,6 +87,8 @@ Result<T> readClaw(const Buffer &buff) {
 	return readClaw<T>(buff.data(), buff.size());
 }
 
+Result<ModelObject> readClaw(TypeStore *ts, const char *buff, std::size_t buffSz) noexcept;
+
 Result<ModelObject> readClaw(TypeStore *ts, const Buffer &buff) noexcept;
 
 }

deps/ox/src/ox/fs/filesystem/passthroughfs.cpp

@@ -102,7 +102,7 @@ Result<FileStat> PassThroughFS::statPath(CRStringView path) const noexcept {
 	const uint64_t size = type == FileType::Directory ? 0 : std::filesystem::file_size(p, ec);
 	oxTracef("ox::fs::PassThroughFS::statInode", "{} {}", ec.message(), path);
 	oxTracef("ox::fs::PassThroughFS::statInode::size", "{} {}", path, size);
-	oxReturnError(OxError(ec.value()));
+	oxReturnError(OxError(ec.value(), "PassThroughFS: stat failed"));
 	return FileStat{0, 0, size, type};
 }
 

deps/ox/src/ox/model/modelvalue.hpp

@@ -532,12 +532,14 @@ class ModelUnion {
 				m_fields[field->name] = field.get();
 				++i;
 			}
+			m_type = other.m_type;
 			m_unionIdx = other.m_unionIdx;
 		}
 
 		constexpr ModelUnion(ModelUnion &&other) noexcept {
 			m_fieldsOrder = std::move(other.m_fieldsOrder);
 			m_fields = std::move(other.m_fields);
+			m_type = other.m_type;
 			m_unionIdx = other.m_unionIdx;
 		}
 

deps/ox/src/ox/oc/read.cpp

@@ -290,6 +290,12 @@ Error OrganicClawReader::fieldCString(const char *key, char **val, std::size_t b
 	return err;
 }
 
+Error OrganicClawReader::field(const char *key, UUID *val) noexcept {
+	UUIDStr str;
+	oxReturnError(field(key, &str));
+	return UUID::fromString(str).moveTo(val);
+}
+
 Result<std::size_t> OrganicClawReader::arrayLength(const char *key, bool) noexcept {
 	const auto &jv = value(key);
 	if (jv.empty()) {

deps/ox/src/ox/oc/read.hpp

@@ -21,6 +21,7 @@
 #include <ox/std/memops.hpp>
 #include <ox/std/memory.hpp>
 #include <ox/std/string.hpp>
+#include <ox/std/uuid.hpp>
 
 namespace ox {
 
@@ -79,6 +80,8 @@ class OrganicClawReader {
 
 		Error fieldCString(const char *key, char **val, std::size_t buffLen) noexcept;
 
+		Error field(const char *key, UUID *val) noexcept;
+
 		/**
 		 * Reads an array length from the current location in the buffer.
 		 * @param pass indicates that the parsing should iterate past the array length

deps/ox/src/ox/oc/write.cpp

@@ -46,6 +46,15 @@ Error OrganicClawWriter::fieldCString(const char *key, char **val) noexcept {
 	return fieldCString(key, const_cast<const char**>(val), {});
 }
 
+Error OrganicClawWriter::field(const char *key, const UUID *uuid) noexcept {
+	const auto uuidStr = uuid->toString();
+	if (targetValid() && uuidStr.len()) {
+		value(key) = uuidStr.c_str();
+	}
+	++m_fieldIt;
+	return {};
+}
+
 Json::Value &OrganicClawWriter::value(const char *key) noexcept {
 	if (m_json.isArray()) {
 		return m_json[m_fieldIt];

deps/ox/src/ox/oc/write.hpp

@@ -18,6 +18,7 @@
 #include <ox/std/buffer.hpp>
 #include <ox/std/hashmap.hpp>
 #include <ox/std/string.hpp>
+#include <ox/std/uuid.hpp>
 
 namespace ox {
 
@@ -105,7 +106,7 @@ class OrganicClawWriter {
 				value(key) = *val;
 			}
 			++m_fieldIt;
-			return OxError(0);
+			return {};
 		}
 
 		template<typename T>
@@ -130,7 +131,7 @@ class OrganicClawWriter {
 				value(key) = w.m_json;
 			}
 			++m_fieldIt;
-			return OxError(0);
+			return {};
 		}
 
 		template<typename T>
@@ -172,6 +173,8 @@ class OrganicClawWriter {
 
 		Error fieldCString(const char *name, char **val) noexcept;
 
+		Error field(const char *key, const UUID *uuid) noexcept;
+
 		template<typename T>
 		Error field(const char*, T *val) noexcept;
 

deps/ox/src/ox/preloader/preloader.hpp

@@ -67,12 +67,12 @@ class Preloader: public ModelHandlerBase<Preloader<PlatSpec>> {
 
 		constexpr Preloader() noexcept: m_writer(&m_buff) {}
 
+	public:
 		Preloader(const Preloader &src) = delete;
 		Preloader(Preloader &&src) = delete;
 		const Preloader &operator=(const Preloader &src) = delete;
 		const Preloader &operator=(Preloader &&src) = delete;
 
-	public:
 		constexpr static ox::Result<ox::UniquePtr<Preloader>> make(ox::ios_base::seekdir anchor = ox::ios_base::cur,
 		                                                           std::size_t sz = 0) noexcept;
 

deps/ox/src/ox/std/CMakeLists.txt

@@ -37,6 +37,7 @@ add_library(
 		strops.cpp
 		trace.cpp
 		typetraits.cpp
+		uuid.cpp
 )
 
 if(NOT MSVC)
@@ -109,6 +110,7 @@ install(
 		types.hpp
 		typetraits.hpp
 		units.hpp
+		uuid.hpp
 		vector.hpp
 		writer.hpp
 	DESTINATION

deps/ox/src/ox/std/assert.hpp

@@ -80,7 +80,7 @@ constexpr void expect(const char *file, int line, const auto &actual, const auto
 		 if (!std::is_constant_evaluated()) {
 #if defined(OX_USE_STDLIB)
 			oxErrf("\n\033[31;1;1mASSERT FAILURE:\033[0m [{}:{}]: {}\n", file, line, "Value incorrect");
-			oxErrf("expected: {}, actual: {}\n", detail::toStringView<true>(expected), detail::toStringView<true>(actual));
+			oxErrf("expected: {}\nactual:   {}\n", detail::toStringView<true>(expected), detail::toStringView<true>(actual));
 			printStackTrace(2);
 			oxTracef("assert::expect", "Failed assert: {} == {} [{}:{}]", detail::toStringView<true>(actual), detail::toStringView<true>(expected), file, line);
 			std::abort();

deps/ox/src/ox/std/bstring.hpp

@@ -28,6 +28,8 @@ class BString {
 
 		constexpr BString(const char *str) noexcept;
 
+		constexpr BString &operator=(CRStringView str) noexcept;
+
 		constexpr BString &operator=(const char *str) noexcept;
 
 		constexpr BString &operator=(char *str) noexcept;
@@ -48,9 +50,13 @@ class BString {
 
 		constexpr BString operator+(Integer_c auto i) const noexcept;
 
-		constexpr bool operator==(const BString &other) const noexcept;
+		constexpr bool operator==(const char *other) const noexcept;
 
-		constexpr bool operator!=(const BString &other) noexcept;
+		constexpr bool operator==(const OxString_c auto &other) const noexcept;
+
+		constexpr bool operator!=(const char *other) const noexcept;
+
+		constexpr bool operator!=(const OxString_c auto &other) noexcept;
 
 		constexpr char operator[](std::size_t i) const noexcept;
 
@@ -58,6 +64,10 @@ class BString {
 
 		constexpr Error append(const char *str, std::size_t strLen) noexcept;
 
+		[[nodiscard]]
+		constexpr const char *data() const noexcept;
+
+		[[nodiscard]]
 		constexpr char *data() noexcept;
 
 		[[nodiscard]]
@@ -88,12 +98,12 @@ constexpr BString<size>::BString() noexcept: m_buff{{0}} {
 
 template<std::size_t size>
 constexpr BString<size>::BString(StringView str) noexcept: m_buff{{0}} {
-	*this = str;
+	operator=(str);
 }
 
 template<std::size_t size>
 constexpr BString<size>::BString(const char *str) noexcept: m_buff{{0}} {
-	*this = str;
+	operator=(str);
 }
 
 template<std::size_t size>
@@ -103,6 +113,18 @@ constexpr BString<size> &BString<size>::operator=(Integer_c auto i) noexcept {
 	return this->operator=(str);
 }
 
+template<std::size_t size>
+constexpr BString<size> &BString<size>::operator=(ox::CRStringView str) noexcept {
+	std::size_t strLen = str.bytes() + 1;
+	if (cap() < strLen) {
+		strLen = cap();
+	}
+	ox_memcpy(m_buff, str.data(), strLen);
+	// make sure last element is a null terminator
+	m_buff[strLen] = 0;
+	return *this;
+}
+
 template<std::size_t size>
 constexpr BString<size> &BString<size>::operator=(const char *str) noexcept {
 	std::size_t strLen = ox_strlen(str) + 1;
@@ -111,7 +133,7 @@ constexpr BString<size> &BString<size>::operator=(const char *str) noexcept {
 	}
 	ox_memcpy(m_buff, str, strLen);
 	// make sure last element is a null terminator
-	m_buff[cap() - 1] = 0;
+	m_buff[cap()] = 0;
 	return *this;
 }
 
@@ -167,21 +189,22 @@ constexpr BString<size> BString<size>::operator+(Integer_c auto i) const noexcep
 }
 
 template<std::size_t buffLen>
-constexpr bool BString<buffLen>::operator==(const BString<buffLen> &other) const noexcept {
+constexpr bool BString<buffLen>::operator==(const char *other) const noexcept {
-	bool retval = true;
+	return ox::StringView(*this) == other;
-	std::size_t i = 0;
-	while (i < buffLen && (m_buff[i] || other.m_buff[i])) {
-		if (m_buff[i] != other.m_buff[i]) {
-			retval = false;
-			break;
-		}
-		i++;
-	}
-	return retval;
 }
 
 template<std::size_t buffLen>
-constexpr bool BString<buffLen>::operator!=(const BString<buffLen> &other) noexcept {
+constexpr bool BString<buffLen>::operator==(const OxString_c auto &other) const noexcept {
+	return ox::StringView(*this) == ox::StringView(other);
+}
+
+template<std::size_t buffLen>
+constexpr bool BString<buffLen>::operator!=(const char *other) const noexcept {
+	return !operator==(other);
+}
+
+template<std::size_t buffLen>
+constexpr bool BString<buffLen>::operator!=(const OxString_c auto &other) noexcept {
 	return !operator==(other);
 }
 
@@ -209,6 +232,11 @@ constexpr Error BString<buffLen>::append(const char *str, std::size_t strLen) no
 	return err;
 }
 
+template<std::size_t buffLen>
+constexpr const char *BString<buffLen>::data() const noexcept {
+	return static_cast<const char*>(m_buff);
+}
+
 template<std::size_t buffLen>
 constexpr char *BString<buffLen>::data() noexcept {
 	return static_cast<char*>(m_buff);

deps/ox/src/ox/std/concepts.hpp

@@ -16,6 +16,10 @@ template<typename T, typename U>
 concept CommonPtrWith = ox::is_same_v<typename ox::remove_pointer<const T*>::type,
                                       typename ox::remove_pointer<const U*>::type>;
 
+template<typename T, typename U>
+concept CommonRefWith = ox::is_same_v<typename ox::remove_reference_t<const T&>,
+                                      typename ox::remove_reference_t<const U&>>;
+
 template<typename T, typename U>
 concept same_as = ox::is_same_v<T, T>;
 
@@ -50,4 +54,4 @@ constexpr auto isOxString(const StringView*) noexcept {
 template<typename T>
 concept OxString_c = detail::isOxString(static_cast<T*>(nullptr));
 
-}
+}

deps/ox/src/ox/std/fmt.hpp

@@ -207,7 +207,7 @@ constexpr Result<T> join(auto d, const auto &list) {
 		return T("");
 	}
 	T out;
-	out += list.front().value;
+	out += list[0];
 	for (auto i = 1ul; i < list.size(); ++i) {
 		out += d;
 		out += list[i];

deps/ox/src/ox/std/math.hpp

@@ -14,19 +14,37 @@ namespace ox {
 
 template<typename T>
 [[nodiscard]]
-constexpr const T &min(const T &a, const T &b) noexcept {
+constexpr T min(T a, T b) noexcept requires(ox::is_integral_v<T>) {
 	return a < b ? a : b;
 }
 
 template<typename T>
 [[nodiscard]]
-constexpr const T &max(const T &a, const T &b) noexcept {
+constexpr const T &min(const T &a, const T &b) noexcept requires(!ox::is_integral_v<T>) {
+	return a < b ? a : b;
+}
+
+template<typename T>
+[[nodiscard]]
+constexpr T max(T a, T b) noexcept requires(ox::is_integral_v<T>) {
 	return a > b ? a : b;
 }
 
 template<typename T>
 [[nodiscard]]
-constexpr const T &clamp(const T &v, const T &lo, const T &hi) noexcept {
+constexpr const T &max(const T &a, const T &b) noexcept requires(!ox::is_integral_v<T>) {
+	return a > b ? a : b;
+}
+
+template<typename T>
+[[nodiscard]]
+constexpr T clamp(T v, T lo, T hi) noexcept requires(ox::is_integral_v<T>) {
+	return min(ox::max(v, lo), hi);
+}
+
+template<typename T>
+[[nodiscard]]
+constexpr const T &clamp(const T &v, const T &lo, const T &hi) noexcept requires(!ox::is_integral_v<T>) {
 	return min(ox::max(v, lo), hi);
 }
 

deps/ox/src/ox/std/optional.hpp

@@ -11,6 +11,7 @@
 #include "bit.hpp"
 #include "initializerlist.hpp"
 #include "iterator.hpp"
+#include "memory.hpp"
 #include "new.hpp"
 #include "types.hpp"
 #include "utility.hpp"
@@ -21,19 +22,17 @@ template<typename T, std::size_t buffSize = sizeof(T)>
 class Optional {
 	private:
 		T *m_ptr = nullptr;
-		char m_data[buffSize] = {};
+		AllocAlias<T> m_data = {};
 
 	public:
 		constexpr Optional() noexcept = default;
 
 		template<typename ...Args>
-		constexpr Optional(Args &&... args);
+		explicit constexpr Optional(Args &&... args);
 
 		constexpr Optional(const Optional &other) {
 			if (other.m_ptr) {
-				m_ptr = new(m_data) T(*other.m_ptr);
+				m_ptr = new(m_data.data()) T(*other.m_ptr);
-			} else {
-				m_ptr = nullptr;
 			}
 		}
 
@@ -42,15 +41,13 @@ class Optional {
 				m_ptr->~T();
 			}
 			if (other.m_ptr) {
-				m_ptr = new(m_data) T(std::move(*other.m_ptr));
+				m_ptr = new(m_data.data()) T(std::move(*other.m_ptr));
-			} else {
-				m_ptr = nullptr;
 			}
 		}
 
 		constexpr ~Optional() {
 			if (m_ptr) {
-				m_ptr->~T();
+				reset();
 			}
 		}
 
@@ -98,8 +95,7 @@ class Optional {
 				}
 				*m_ptr = *other.m_ptr;
 			} else if (m_ptr) {
-				m_ptr->~T();
+				reset();
-				m_ptr = nullptr;
 			}
 			return *this;
 		}
@@ -114,22 +110,29 @@ class Optional {
 				}
 				*m_ptr = std::move(*other.m_ptr);
 			} else if (m_ptr) {
-				m_ptr->~T();
+				reset();
-				m_ptr = nullptr;
 			}
 			return *this;
 		}
 
 		template<class... Args>
 		constexpr T &emplace(Args &&...args) {
-			m_ptr = std::construct_at<T>(m_ptr, ox::forward<Args>(args)...);
+			if (std::is_constant_evaluated()) {
+				m_ptr = new T(ox::forward<Args>(args)...);
+			} else {
+				m_ptr = std::construct_at<T>(reinterpret_cast<T*>(m_data.data()), ox::forward<Args>(args)...);
+			}
 			return *m_ptr;
 		}
 
 		template<typename U, class... Args>
 		constexpr T &emplace_subclass(Args &&...args) {
 			static_assert(sizeof(U) <= buffSize, "Subclass is too large for this Optional");
-			m_ptr = std::construct_at<U>(m_ptr, ox::forward<Args>(args)...);
+			if (std::is_constant_evaluated()) {
+				m_ptr = new U(ox::forward<Args>(args)...);
+			} else {
+				m_ptr = std::construct_at<U>(reinterpret_cast<U*>(m_data.data()), ox::forward<Args>(args)...);
+			}
 			return *m_ptr;
 		}
 
@@ -143,7 +146,11 @@ class Optional {
 		}
 
 		constexpr void reset() noexcept {
-			get()->~T();
+			if (std::is_constant_evaluated()) {
+				ox::safeDelete(m_ptr);
+			} else {
+				get()->~T();
+			}
 			m_ptr = nullptr;
 		}
 
@@ -155,4 +162,4 @@ constexpr Optional<T, buffSize>::Optional(Args &&... args) {
 	emplace(ox::forward<Args>(args)...);
 }
 
-}
+}

deps/ox/src/ox/std/random.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2022 gary@drinkingtea.net
+ * Copyright 2015 - 2023 gary@drinkingtea.net
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this

deps/ox/src/ox/std/random.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2022 gary@drinkingtea.net
+ * Copyright 2015 - 2023 gary@drinkingtea.net
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -25,12 +25,19 @@ class OX_PACKED Random {
 
 		explicit constexpr Random(const RandomSeed &seed) noexcept;
 
+		constexpr void seed(const RandomSeed &seed) noexcept;
+
 		constexpr uint64_t gen() noexcept;
 };
 
 constexpr Random::Random(const RandomSeed &seed) noexcept: m_seed{seed[0], seed[1]} {
 }
 
+constexpr void Random::seed(const RandomSeed &seed) noexcept {
+	m_seed[0] = seed[0];
+	m_seed[1] = seed[1];
+}
+
 constexpr uint64_t Random::gen() noexcept {
 	auto s0 = m_seed[0];
 	auto s1 = m_seed[1];

deps/ox/src/ox/std/std.hpp

@@ -42,4 +42,5 @@
 #include "types.hpp"
 #include "typetraits.hpp"
 #include "units.hpp"
+#include "uuid.hpp"
 #include "vector.hpp"

deps/ox/src/ox/std/string.hpp

@@ -439,19 +439,7 @@ constexpr bool BasicString<SmallStringSize_v>::operator==(const char *other) con
 
 template<std::size_t SmallStringSize_v>
 constexpr bool BasicString<SmallStringSize_v>::operator==(const OxString_c auto &other) const noexcept {
-	if (len() != other.len()) {
+	return ox::StringView(*this) == ox::StringView(other);
-		return false;
-	}
-	bool retval = true;
-	std::size_t i = 0;
-	while (i < m_buff.size() && (m_buff[i] || other[i])) {
-		if (m_buff[i] != other[i]) {
-			retval = false;
-			break;
-		}
-		i++;
-	}
-	return retval;
 }
 
 template<std::size_t SmallStringSize_v>

deps/ox/src/ox/std/stringview.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2022 gary@drinkingtea.net
+ * Copyright 2015 - 2023 gary@drinkingtea.net
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -12,10 +12,12 @@
 #include <string_view>
 #endif
 
+#include "bit.hpp"
 #include "iterator.hpp"
 #include "strops.hpp"
 #include "types.hpp"
-#include "bit.hpp"
+#include "vector.hpp"
+#include "writer.hpp"
 
 namespace ox {
 
@@ -223,7 +225,18 @@ class StringView {
 
 		[[nodiscard]]
 		constexpr auto substr(std::size_t pos) const noexcept {
-			return StringView(m_str + pos, m_len - pos);
+			if (m_len >= pos) {
+				return StringView(m_str + pos, m_len - pos);
+			}
+			return StringView();
+		}
+
+		[[nodiscard]]
+		constexpr auto substr(std::size_t start, std::size_t end) const noexcept {
+			if (m_len >= start && end >= start) {
+				return StringView(m_str + start, end - start);
+			}
+			return StringView();
 		}
 
 		constexpr auto operator[](std::size_t i) const noexcept {
@@ -276,6 +289,62 @@ constexpr bool endsWith(CRStringView base, CRStringView ending) noexcept {
 	return base.len() >= endingLen && ox_strcmp(base.data() + (base.len() - endingLen), ending) == 0;
 }
 
+constexpr std::size_t find(CRStringView str, char search) noexcept {
+	std::size_t i = 0;
+	for (; i < str.len(); ++i) {
+		if (str[i] == search) {
+			break;
+		}
+	}
+	return i;
+}
+
+constexpr std::size_t find(CRStringView str, CRStringView search) noexcept {
+	std::size_t i = 0;
+	for (; i < str.len(); ++i) {
+		if (beginsWith(str.substr(i), search)) {
+			break;
+		}
+	}
+	return i;
+}
+
+template<std::size_t smallSz = 0>
+constexpr ox::Vector<ox::StringView, smallSz> split(CRStringView str, char del) noexcept {
+	ox::Vector<ox::StringView, smallSz> out;
+	constexpr auto nextSeg = [](CRStringView current, char del) {
+		return current.substr(find(current, del) + 1);
+	};
+	for (auto current = str; current.len(); current = nextSeg(current, del)) {
+		const auto next = find(current, del);
+		if (const auto s = current.substr(0, next); s.len()) {
+			out.emplace_back(s);
+		}
+		current = current.substr(next);
+	}
+	return out;
+}
+
+template<std::size_t smallSz = 0>
+constexpr ox::Vector<ox::StringView, smallSz> split(CRStringView str, CRStringView del) noexcept {
+	ox::Vector<ox::StringView, smallSz> out;
+	constexpr auto nextSeg = [](CRStringView current, CRStringView del) {
+		return current.substr(find(current, del) + del.len());
+	};
+	for (auto current = str; current.len(); current = nextSeg(current, del)) {
+		const auto next = find(current, del);
+		if (const auto s = current.substr(0, next); s.len()) {
+			out.emplace_back(s);
+		}
+		current = current.substr(next);
+	}
+	return out;
+}
+
+constexpr auto write(Writer_c auto *writer, ox::CRStringView sv) noexcept {
+	return writer->write(sv.data(), sv.bytes());
+}
+
 #ifdef OX_USE_STDLIB
 constexpr auto toStdStringView(CRStringView sv) noexcept {
 	return std::string_view(sv.data(), sv.bytes());

deps/ox/src/ox/std/test/CMakeLists.txt

@@ -18,3 +18,8 @@ add_test("[ox/std] HashMap" StdTest "HashMap")
 add_test("[ox/std] HeapMgr" StdTest malloc)
 add_test("[ox/std] Serialize-Int" StdTest "Serialize-Int")
 add_test("[ox/std] BufferWriter" StdTest "BufferWriter")
+add_test("[ox/std] StringSplit" StdTest "StringSplit")
+add_test("[ox/std] FromHex" StdTest "FromHex")
+add_test("[ox/std] ToHex" StdTest "ToHex")
+add_test("[ox/std] UUID" StdTest "UUID")
+add_test("[ox/std] UUID::generate" StdTest "UUID::generate")

deps/ox/src/ox/std/test/tests.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2022 gary@drinkingtea.net
+ * Copyright 2015 - 2023 gary@drinkingtea.net
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -9,6 +9,7 @@
 #undef NDEBUG
 
 #include <map>
+#include <ox/std/uuid.hpp>
 #include <ox/std/std.hpp>
 
 static std::map<ox::String, ox::Error(*)()> tests = {
@@ -59,6 +60,8 @@ static std::map<ox::String, ox::Error(*)()> tests = {
 			oxAssert(s == "AB9C", "BString append broken");
 			s = "asdf";
 			oxAssert(s == "asdf", "String assign broken");
+			oxAssert(s != "aoeu", "String assign broken");
+			oxAssert(s.len() == 4, "String assign broken");
 			return OxError(0);
 		}
 	},
@@ -155,6 +158,135 @@ static std::map<ox::String, ox::Error(*)()> tests = {
 			return OxError(0);
 		}
 	},
+	{
+		"FromHex",
+		[] {
+			oxExpect(ox::detail::fromHex("01").unwrap(), 0x01);
+			oxExpect(ox::detail::fromHex("02").unwrap(), 0x02);
+			oxExpect(ox::detail::fromHex("03").unwrap(), 0x03);
+			oxExpect(ox::detail::fromHex("04").unwrap(), 0x04);
+			oxExpect(ox::detail::fromHex("05").unwrap(), 0x05);
+			oxExpect(ox::detail::fromHex("06").unwrap(), 0x06);
+			oxExpect(ox::detail::fromHex("07").unwrap(), 0x07);
+			oxExpect(ox::detail::fromHex("08").unwrap(), 0x08);
+			oxExpect(ox::detail::fromHex("0d").unwrap(), 0x0d);
+			oxExpect(ox::detail::fromHex("0e").unwrap(), 0x0e);
+			oxExpect(ox::detail::fromHex("0f").unwrap(), 0x0f);
+			oxExpect(ox::detail::fromHex("0F").unwrap(), 0x0f);
+			oxExpect(ox::detail::fromHex("fF").unwrap(), 0xff);
+			oxExpect(ox::detail::fromHex("ff").unwrap(), 0xff);
+			oxExpect(ox::detail::fromHex("a0").unwrap(), 0xa0);
+			oxExpect(ox::detail::fromHex("93").unwrap(), 0x93);
+			oxExpect(ox::detail::fromHex("40").unwrap(), 0x40);
+			return OxError(0);
+		}
+	},
+	{
+		"ToHex",
+		[] {
+			oxExpect(ox::detail::toHex(0x01), "01");
+			oxExpect(ox::detail::toHex(0x02), "02");
+			oxExpect(ox::detail::toHex(0x03), "03");
+			oxExpect(ox::detail::toHex(0x04), "04");
+			oxExpect(ox::detail::toHex(0x05), "05");
+			oxExpect(ox::detail::toHex(0x06), "06");
+			oxExpect(ox::detail::toHex(0x07), "07");
+			oxExpect(ox::detail::toHex(0x08), "08");
+			oxExpect(ox::detail::toHex(0x0d), "0d");
+			oxExpect(ox::detail::toHex(0x0e), "0e");
+			oxExpect(ox::detail::toHex(0x0f), "0f");
+			oxExpect(ox::detail::toHex(0x93), "93");
+			oxExpect(ox::detail::toHex(0x40), "40");
+			oxExpect(ox::detail::toHex(0xf0), "f0");
+			return OxError(0);
+		}
+	},
+	{
+		"UUID",
+		[] {
+			constexpr ox::StringView uuidStr = "8d814442-f46e-4cc3-8edc-ca3c01cc86db";
+			oxRequire(uuid, ox::UUID::fromString(uuidStr));
+			oxExpect(uuid.toString(), uuidStr);
+			return OxError(0);
+		}
+	},
+	{
+		"UUID::generate",
+		[] {
+			ox::UUID::seedGenerator({1234, 4321});
+			oxExpect(ox::UUID::generate().unwrap().toString(), "c8f4bff1-d403-4576-fd3b-0c41f1cd8b7d");
+			oxExpect(ox::UUID::generate().unwrap().toString(), "0d1b7dad-7d50-49b6-916d-c3d811b5af0a");
+			oxExpect(ox::UUID::generate().unwrap().toString(), "e3889e0b-4dcd-47b2-b3eb-492ea958d3e4");
+			return OxError(0);
+		}
+	},
+	{
+		"StringSplit",
+		[] {
+			ox::StringView sv = "ab.cd";
+			auto list = ox::split(sv, ".");
+			oxExpect(list.size(), 2u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			sv = "ab.cd.fg";
+			list = ox::split(sv, ".");
+			oxExpect(list.size(), 3u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			oxExpect(list[2], "fg");
+			sv = "ab.cd.";
+			list = ox::split(sv, ".");
+			oxExpect(list.size(), 2u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			sv = ".ab.cd.";
+			list = ox::split(sv, ".");
+			oxExpect(list.size(), 2u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			sv = ".";
+			list = ox::split(sv, ".");
+			oxExpect(list.size(), 0u);
+			sv = ".";
+			list = ox::split(sv, ".");
+			oxExpect(list.size(), 0u);
+			sv = "";
+			list = ox::split(sv, ".");
+			oxExpect(list.size(), 0u);
+			// split by single char
+			sv = "ab.cd";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 2u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			sv = "ab.cd.fg";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 3u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			oxExpect(list[2], "fg");
+			sv = "ab.cd.";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 2u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			sv = ".ab.cd.";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 2u);
+			oxExpect(list[0], "ab");
+			oxExpect(list[1], "cd");
+			sv = ".";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 0u);
+			sv = ".";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 0u);
+			sv = "";
+			list = ox::split(sv, '.');
+			oxExpect(list.size(), 0u);
+			return OxError(0);
+		}
+	},
 };
 
 int main(int argc, const char **args) {

deps/ox/src/ox/std/types.hpp

@@ -67,6 +67,14 @@ template<typename T, std::size_t sz = sizeof(T)>
 struct alignas(alignof(T)) AllocAlias {
 	char buff[sz];
 	constexpr AllocAlias() noexcept = default;
+	[[nodiscard]]
+	auto data() noexcept {
+		return reinterpret_cast<T*>(this);
+	}
+	[[nodiscard]]
+	auto data() const noexcept {
+		return reinterpret_cast<const T*>(this);
+	}
 };
 
 

deps/ox/src/ox/std/uuid.cpp

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2015 - 2023 gary@drinkingtea.net
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "uuid.hpp"
+
+namespace ox {
+
+bool UUID::s_seeded = false;
+Random UUID::s_rand;
+
+void UUID::seedGenerator(const RandomSeed &seed) noexcept {
+	s_seeded = true;
+	s_rand.seed(seed);
+}
+
+// UUID v4
+Result<UUID> UUID::generate() noexcept {
+	if (!s_seeded) {
+		return OxError(1, "UUID generator not seeded.");
+	}
+	UUID out;
+	for (auto &v : out.m_value) {
+		v = static_cast<uint8_t>(s_rand.gen() % 255);
+	}
+	out.m_value[6] &= 0x0f;
+	out.m_value[6] |= 4 << 4;
+	return out;
+}
+
+}

deps/ox/src/ox/std/uuid.hpp

@@ -0,0 +1,170 @@
+/*
+ * Copyright 2015 - 2023 gary@drinkingtea.net
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "array.hpp"
+#include "bstring.hpp"
+#include "random.hpp"
+#include "stringview.hpp"
+#include "strops.hpp"
+#include "trace.hpp"
+
+namespace ox {
+
+using UUIDStr = ox::BString<36>;
+
+namespace detail {
+
+[[nodiscard]]
+constexpr auto isHexChar(char c) noexcept {
+	return (c >= '0' && c <= '9')
+	    || (c >= 'a' && c <= 'f')
+	    || (c >= 'A' && c <= 'F');
+}
+
+constexpr ox::Result<uint8_t> fromHex(ox::CRStringView v) noexcept {
+	constexpr auto valMap = [] {
+		ox::Array<uint8_t, 128> out;
+		out['A'] = out['a'] = 10;
+		out['B'] = out['b'] = 11;
+		out['C'] = out['c'] = 12;
+		out['D'] = out['d'] = 13;
+		out['E'] = out['e'] = 14;
+		out['F'] = out['f'] = 15;
+		out['0'] = 0;
+		out['1'] = 1;
+		out['2'] = 2;
+		out['3'] = 3;
+		out['4'] = 4;
+		out['5'] = 5;
+		out['6'] = 6;
+		out['7'] = 7;
+		out['8'] = 8;
+		out['9'] = 9;
+		return out;
+	}();
+	if (!detail::isHexChar(v[0]) || !detail::isHexChar(v[1])) {
+		return OxError(1, "Invalid UUID");
+	}
+	if (v.len() != 2) {
+		return OxError(2);
+	}
+	uint8_t out = 0;
+	out += valMap[static_cast<unsigned>(v[0])] * 16u;
+	out += valMap[static_cast<unsigned>(v[1])];
+	return out;
+}
+
+constexpr ox::BString<2> toHex(uint8_t v) noexcept {
+	constexpr ox::Array<char, 16> valMap {
+		'0',
+		'1',
+		'2',
+		'3',
+		'4',
+		'5',
+		'6',
+		'7',
+		'8',
+		'9',
+		'a',
+		'b',
+		'c',
+		'd',
+		'e',
+		'f',
+	};
+	ox::Array<char, 3> out;
+	out[0] = valMap[static_cast<unsigned>((v & 0xf0) / 16)];
+	out[1] = valMap[static_cast<unsigned>(v & 0x0f)];
+	out[2] = 0;
+	return out.data();
+}
+
+}
+
+class UUID {
+	template<typename T>
+	friend constexpr Error model(T *io, ox::CommonPtrWith<UUID> auto *obj) noexcept;
+	protected:
+		static bool s_seeded;
+		static Random s_rand;
+		ox::Array<uint8_t, 16> m_value;
+
+	public:
+		static void seedGenerator(const RandomSeed &seed) noexcept;
+
+		static ox::Result<UUID> generate() noexcept;
+
+		[[nodiscard]]
+		constexpr auto value() const noexcept {
+			return m_value;
+		}
+
+		static constexpr ox::Result<ox::UUID> fromString(ox::CRStringView s) noexcept {
+			if (s.len() < 36) {
+				return OxError(1, "Insufficient data contain complete UUID");
+			}
+			UUID out;
+			auto valueI = 0u;
+			for (auto i = 0u; i < s.len();) {
+				if (s[i] == '-') {
+					++i;
+					continue;
+				}
+				const auto seg = s.substr(i, i + 2);
+				if (seg.len() != 2) {
+					return OxError(1, "Invalid UUID");
+				}
+				oxRequire(val, detail::fromHex(seg));
+				out.m_value[valueI] = val;
+				i += 2;
+				++valueI;
+			}
+			return out;
+		}
+
+		[[nodiscard]]
+		constexpr UUIDStr toString() const noexcept {
+			UUIDStr out;
+			auto valueI = 0u;
+			constexpr auto printChars = [](
+					ox::BString<36> *out,
+					const Array<uint8_t, 16> &value,
+					std::size_t cnt,
+					unsigned valueI) {
+				for (auto i = 0u; i < cnt; ++i) {
+					const auto v = value[valueI];
+					const auto h = detail::toHex(v);
+					oxIgnoreError(out->append(h.c_str(), h.len()));
+					++valueI;
+				}
+				return valueI;
+			};
+			valueI = printChars(&out, m_value, 4, valueI);
+			out += "-";
+			valueI = printChars(&out, m_value, 2, valueI);
+			out += "-";
+			valueI = printChars(&out, m_value, 2, valueI);
+			out += "-";
+			valueI = printChars(&out, m_value, 2, valueI);
+			out += "-";
+			valueI = printChars(&out, m_value, 6, valueI);
+			return out;
+		}
+};
+
+template<typename T>
+constexpr Error model(T *io, ox::CommonPtrWith<UUID> auto *obj) noexcept {
+	io->template setTypeInfo<UUID>();
+	oxReturnError(io->field("value", &obj->m_value));
+	return {};
+}
+
+}

sample_project/.nostalgia/type_descriptors/B.bool;0

@@ -0,0 +1,4 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"primitiveType" : 2,
+	"typeName" : "B.bool"
+}

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.TileSheet.SubSheet;3

@@ -0,0 +1,42 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"fieldList" : 
+	[
+		{
+			"fieldName" : "name",
+			"typeId" : "net.drinkingtea.ox.BasicString#8#;1"
+		},
+		{
+			"fieldName" : "rows",
+			"typeId" : "B.int32;0"
+		},
+		{
+			"fieldName" : "columns",
+			"typeId" : "B.int32;0"
+		},
+		{
+			"fieldName" : "subsheets",
+			"subscriptLevels" : 1,
+			"subscriptStack" : 
+			[
+				{
+					"subscriptType" : 4
+				}
+			],
+			"typeId" : "net.drinkingtea.nostalgia.core.TileSheet.SubSheet;3"
+		},
+		{
+			"fieldName" : "pixels",
+			"subscriptLevels" : 1,
+			"subscriptStack" : 
+			[
+				{
+					"subscriptType" : 4
+				}
+			],
+			"typeId" : "B.uint8;0"
+		}
+	],
+	"primitiveType" : 5,
+	"typeName" : "net.drinkingtea.nostalgia.core.TileSheet.SubSheet",
+	"typeVersion" : 3
+}

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.TileSheet;3

@@ -0,0 +1,24 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"fieldList" : 
+	[
+		{
+			"fieldName" : "bpp",
+			"typeId" : "B.int8;0"
+		},
+		{
+			"fieldName" : "idIt",
+			"typeId" : "B.int32;0"
+		},
+		{
+			"fieldName" : "defaultPalette",
+			"typeId" : "net.drinkingtea.ox.FileAddress;1"
+		},
+		{
+			"fieldName" : "subsheet",
+			"typeId" : "net.drinkingtea.nostalgia.core.TileSheet.SubSheet;3"
+		}
+	],
+	"primitiveType" : 5,
+	"typeName" : "net.drinkingtea.nostalgia.core.TileSheet",
+	"typeVersion" : 3
+}

sample_project/.nostalgia/type_descriptors/net.drinkingtea.ox.FileAddress.Data;1

@@ -14,6 +14,7 @@ O1;net.drinkingtea.ox.TypeDescriptor;1;{
 			"typeId" : "B.uint64;0"
 		}
 	],
+	"preloadable" : true,
 	"primitiveType" : 6,
 	"typeName" : "net.drinkingtea.ox.FileAddress.Data",
 	"typeVersion" : 1

sample_project/.nostalgia/type_descriptors/net.drinkingtea.ox.FileAddress;1

@@ -10,6 +10,7 @@ O1;net.drinkingtea.ox.TypeDescriptor;1;{
 			"typeId" : "net.drinkingtea.ox.FileAddress.Data"
 		}
 	],
+	"preloadable" : true,
 	"primitiveType" : 5,
 	"typeName" : "net.drinkingtea.ox.FileAddress",
 	"typeVersion" : 1

sample_project/Palettes/Chester.npal

@@ -0,0 +1 @@
+N1;14fc3dd8-42ff-4bf9-81f1-a010cc5ac251;M2;net.drinkingtea.nostalgia.core.Palette;1;
ûÿ³Ö

sample_project/Palettes/Dirt.npal

@@ -1 +1 @@
-M2;net.drinkingtea.nostalgia.core.Palette;1;
ûÿ³Ö
+N1;0f75977f-1c52-45f8-9793-52ea2dc200a0;M2;net.drinkingtea.nostalgia.core.Palette;1;
ûÿ³Ö

sample_project/Palettes/Logo.npal

@@ -1 +1 @@
-M2;net.drinkingtea.nostalgia.core.Palette;1;

PÛ{³ÖCˆ
+N1;c79f21e2-f74f-4ad9-90ed-32b0ef7da6ed;M2;net.drinkingtea.nostalgia.core.Palette;1;

PÛ{³ÖCˆ

src/nostalgia/CMakeLists.txt

@@ -6,7 +6,6 @@ add_subdirectory(core)
 add_subdirectory(foundation)
 add_subdirectory(geo)
 add_subdirectory(scene)
-add_subdirectory(world)
 
 if(NOSTALGIA_BUILD_PLAYER)
 	add_subdirectory(player)

src/nostalgia/appmodules/appmodules.cpp

@@ -11,9 +11,9 @@
 
 namespace nostalgia {
 
+static bool modulesLoaded = false;
 void loadModules() noexcept {
-	static bool done = false;
+	if (modulesLoaded) {
-	if (done) {
 		return;
 	}
 	const ox::Array<foundation::Module*, 2> mods = {
@@ -23,7 +23,7 @@ void loadModules() noexcept {
 	for (const auto m : mods) {
 		foundation::registerModule(m);
 	}
-	done = true;
+	modulesLoaded = true;
 }
 
 }

src/nostalgia/core/CMakeLists.txt

@@ -2,6 +2,8 @@ add_library(
 	NostalgiaCore-Common OBJECT
 		gfx.cpp
 		module.cpp
+		tilesheet.cpp
+		typeconv.cpp
 		typestore.cpp
 )
 

src/nostalgia/core/gfx.hpp

@@ -14,6 +14,7 @@
 #include "color.hpp"
 #include "context.hpp"
 #include "ptidxconv.hpp"
+#include "tilesheet.hpp"
 
 namespace nostalgia::core {
 
@@ -31,431 +32,6 @@ enum class TileSheetSpace {
 	Sprite
 };
 
-struct NostalgiaPalette {
-	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.NostalgiaPalette";
-	static constexpr auto TypeVersion = 1;
-	ox::Vector<Color16> colors = {};
-};
-
-struct Palette {
-	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.Palette";
-	static constexpr auto TypeVersion = 1;
-	ox::Vector<Color16> colors = {};
-	[[nodiscard]]
-	constexpr Color16 color(auto idx) const noexcept {
-		if (idx < colors.size()) [[likely]] {
-			return colors[idx];
-		}
-		return 0;
-	}
-};
-
-// Predecessor to TileSheet, kept for backward compatibility
-struct NostalgiaGraphic {
-	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.NostalgiaGraphic";
-	static constexpr auto TypeVersion = 1;
-	int8_t bpp = 0;
-	// rows and columns are really only used by TileSheetEditor
-	int rows = 1;
-	int columns = 1;
-	ox::FileAddress defaultPalette;
-	Palette pal;
-	ox::Vector<uint8_t> pixels = {};
-};
-
-struct TileSheet {
-	using SubSheetIdx = ox::Vector<std::size_t, 4>;
-
-	struct SubSheet {
-		static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.TileSheet.SubSheet";
-		static constexpr auto TypeVersion = 1;
-		ox::String name;
-		int columns = 0;
-		int rows = 0;
-		ox::Vector<SubSheet> subsheets;
-		ox::Vector<uint8_t> pixels;
-
-		constexpr SubSheet() noexcept = default;
-		constexpr SubSheet(const SubSheet &other) noexcept {
-			name      = other.name;
-			columns   = other.columns;
-			rows      = other.rows;
-			subsheets = other.subsheets;
-			pixels    = other.pixels;
-		}
-		constexpr SubSheet(SubSheet &&other) noexcept {
-			name      = std::move(other.name);
-			columns   = other.columns;
-			rows      = other.rows;
-			subsheets = std::move(other.subsheets);
-			pixels    = std::move(other.pixels);
-			other.name = "";
-			other.columns = 0;
-			other.rows = 0;
-		}
-		constexpr SubSheet(ox::CRStringView pName, int pColumns, int pRows, int bpp) noexcept:
-			name(pName), columns(pColumns), rows(pRows),
-            pixels(static_cast<std::size_t>(columns * rows * PixelsPerTile) / (bpp == 4 ? 2u : 1u)) {
-		}
-		constexpr SubSheet(ox::CRStringView pName, int pColumns, int pRows, ox::Vector<uint8_t> pPixels) noexcept:
-			name(pName), columns(pColumns), rows(pRows), pixels(std::move(pPixels)) {
-		}
-
-		constexpr SubSheet &operator=(const SubSheet &other) noexcept = default;
-
-		constexpr SubSheet &operator=(SubSheet &&other) noexcept {
-			name      = std::move(other.name);
-			columns   = other.columns;
-			rows      = other.rows;
-			subsheets = std::move(other.subsheets);
-			pixels    = std::move(other.pixels);
-			return *this;
-		}
-
-		[[nodiscard]]
-		constexpr auto idx(const geo::Point &pt) const noexcept {
-			return ptToIdx(pt, columns);
-		}
-
-		/**
-		 * Reads all pixels of this sheet or its children into the given pixel list
-		 * @param pixels
-		 */
-		constexpr void readPixelsTo(ox::Vector<uint8_t> *pPixels, int8_t bpp) const noexcept {
-			if (subsheets.size()) {
-				for (auto &s: subsheets) {
-					s.readPixelsTo(pPixels);
-				}
-			} else {
-				if (bpp == 4) {
-					for (auto p: this->pixels) {
-						pPixels->emplace_back(p & 0b1111);
-						pPixels->emplace_back(p >> 4);
-					}
-				} else {
-					for (auto p: this->pixels) {
-						pPixels->emplace_back(p);
-					}
-				}
-			}
-		}
-
-		/**
-		 * Reads all pixels of this sheet or its children into the given pixel list
-		 * @param pixels
-		 */
-		constexpr void readPixelsTo(ox::Vector<uint8_t> *pPixels) const noexcept {
-			if (subsheets.size()) {
-				for (auto &s: subsheets) {
-					s.readPixelsTo(pPixels);
-				}
-			} else {
-				for (auto p : this->pixels) {
-					pPixels->emplace_back(p);
-				}
-			}
-		}
-
-		[[nodiscard]]
-		constexpr std::size_t size() const noexcept {
-			return static_cast<std::size_t>(columns) * static_cast<std::size_t>(rows);
-		}
-
-		[[nodiscard]]
-		constexpr std::size_t unusedPixels() const noexcept {
-			std::size_t childrenSize = 0;
-			for (auto &c : subsheets) {
-				childrenSize += c.size();
-			}
-			return size() - childrenSize;
-		}
-
-		[[nodiscard]]
-		constexpr uint8_t getPixel4Bpp(std::size_t idx) const noexcept {
-			if (idx & 1) {
-				return this->pixels[idx / 2] >> 4;
-			} else {
-				return this->pixels[idx / 2] & 0b0000'1111;
-			}
-		}
-
-		[[nodiscard]]
-		constexpr uint8_t getPixel8Bpp(std::size_t idx) const noexcept {
-			return this->pixels[idx];
-		}
-
-		[[nodiscard]]
-		constexpr auto getPixel(int8_t pBpp, std::size_t idx) const noexcept {
-			if (pBpp == 4) {
-				return getPixel4Bpp(idx);
-			} else {
-				return getPixel8Bpp(idx);
-			}
-		}
-
-		[[nodiscard]]
-		constexpr auto getPixel4Bpp(const geo::Point &pt) const noexcept {
-			const auto idx = ptToIdx(pt, columns);
-			return getPixel4Bpp(idx);
-		}
-
-		[[nodiscard]]
-		constexpr auto getPixel8Bpp(const geo::Point &pt) const noexcept {
-			const auto idx = ptToIdx(pt, columns);
-			return getPixel8Bpp(idx);
-		}
-
-		[[nodiscard]]
-		constexpr auto getPixel(int8_t pBpp, const geo::Point &pt) const noexcept {
-			const auto idx = ptToIdx(pt, columns);
-			return getPixel(pBpp, idx);
-		}
-
-		constexpr auto walkPixels(int8_t pBpp, auto callback) const noexcept {
-			if (pBpp == 4) {
-				const auto pixelCnt = ox::min<std::size_t>(static_cast<std::size_t>(columns * rows * PixelsPerTile) / 2,
-				                                           pixels.size());
-				//oxAssert(pixels.size() == pixelCnt, "Pixel count does not match rows and columns");
-				for (std::size_t i = 0; i < pixelCnt; ++i) {
-					const auto colorIdx1 = pixels[i] & 0xF;
-					const auto colorIdx2 = pixels[i] >> 4;
-					callback(i * 2 + 0, colorIdx1);
-					callback(i * 2 + 1, colorIdx2);
-				}
-			} else {
-				const auto pixelCnt = ox::min<std::size_t>(static_cast<std::size_t>(columns * rows * PixelsPerTile),
-				                                           pixels.size());
-				for (std::size_t i = 0; i < pixelCnt; ++i) {
-					const auto p = pixels[i];
-					callback(i, p);
-				}
-			}
-		}
-
-		constexpr void setPixel(int8_t pBpp, uint64_t idx, uint8_t palIdx) noexcept {
-			auto &pixel = this->pixels[idx / 2];
-			if (pBpp == 4) {
-				if (idx & 1) {
-					pixel = (pixel & 0b0000'1111) | (palIdx << 4);
-				} else {
-					pixel = (pixel & 0b1111'0000) | (palIdx);
-				}
-			} else {
-				pixel = palIdx;
-			}
-		}
-
-		constexpr void setPixel(int8_t pBpp, const geo::Point &pt, uint8_t palIdx) noexcept {
-			const auto idx = ptToIdx(pt, columns);
-			setPixel(pBpp, idx, palIdx);
-		}
-
-		constexpr auto setPixelCount(int8_t pBpp, std::size_t cnt) noexcept {
-			switch (pBpp) {
-				case 4:
-					pixels.resize(cnt / 2);
-					return OxError(0);
-				case 8:
-					pixels.resize(cnt);
-					return OxError(0);
-				default:
-					return OxError(1, "Invalid pBpp used for TileSheet::SubSheet::setPixelCount");
-			}
-		}
-
-		/**
-		 * Gets a count of the pixels in this sheet, and not that of its children.
-		 * @param pBpp bits per pixel, need for knowing how to count the pixels
-		 * @return a count of the pixels in this sheet
-		 */
-		[[nodiscard]]
-		constexpr auto pixelCnt(int8_t pBpp) const noexcept {
-			return pBpp == 4 ? pixels.size() * 2 : pixels.size();
-		}
-	};
-
-	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.TileSheet";
-	static constexpr auto TypeVersion = 2;
-	int8_t bpp = 4;
-	ox::FileAddress defaultPalette;
-	SubSheet subsheet{"Root", 1, 1, bpp};
-
-	constexpr TileSheet() noexcept = default;
-	TileSheet(const TileSheet &other) noexcept = default;
-	inline TileSheet(TileSheet &&other) noexcept:
-		bpp(other.bpp),
-		defaultPalette(std::move(other.defaultPalette)),
-		subsheet(std::move(other.subsheet)) {
-	}
-
-	inline auto &operator=(const TileSheet &other) noexcept {
-		if (this != &other) {
-			bpp = other.bpp;
-			defaultPalette = other.defaultPalette;
-			subsheet = other.subsheet; } return *this;
-	}
-	inline auto &operator=(TileSheet &&other) noexcept {
-		bpp = other.bpp;
-		defaultPalette = std::move(other.defaultPalette);
-		subsheet = std::move(other.subsheet);
-		return *this;
-	}
-
-	[[nodiscard]]
-	constexpr auto validateSubSheetIdx(const SubSheetIdx &pIdx, std::size_t pIdxIt, const SubSheet *pSubsheet) noexcept {
-		if (pIdxIt == pIdx.size()) {
-			return pIdx;
-		}
-		const auto currentIdx = pIdx[pIdxIt];
-		if (pSubsheet->subsheets.size() <= currentIdx) {
-			auto out = pIdx;
-			if (pSubsheet->subsheets.size()) {
-				out.back().value = pSubsheet->subsheets.size() - 1;
-			} else {
-				out.pop_back();
-			}
-			return out;
-		}
-		return validateSubSheetIdx(pIdx, pIdxIt + 1, &pSubsheet->subsheets[pIdx[pIdxIt]]);
-	}
-
-	/**
-	 * validateSubSheetIdx takes a SubSheetIdx and moves the index to the
-	 * preceding or parent sheet if the current corresponding sheet does
-	 * not exist.
-	 * @param idx SubSheetIdx to validate and correct
-	 * @return a valid version of idx
-	 */
-	[[nodiscard]]
-	constexpr auto validateSubSheetIdx(const SubSheetIdx &idx) noexcept {
-		return validateSubSheetIdx(idx, 0, &subsheet);
-	}
-
-	[[nodiscard]]
-	constexpr static const auto &getSubSheet(const SubSheetIdx &idx, std::size_t idxIt,
-                                             const SubSheet *pSubsheet) noexcept {
-		if (idxIt == idx.size()) {
-			return *pSubsheet;
-		}
-		const auto currentIdx = idx[idxIt];
-		if (pSubsheet->subsheets.size() < currentIdx) {
-			return *pSubsheet;
-		}
-		return getSubSheet(idx, idxIt + 1, &pSubsheet->subsheets[currentIdx]);
-	}
-
-	[[nodiscard]]
-	constexpr static auto &getSubSheet(const SubSheetIdx &idx, std::size_t idxIt, SubSheet *pSubsheet) noexcept {
-		if (idxIt == idx.size()) {
-			return *pSubsheet;
-		}
-		return getSubSheet(idx, idxIt + 1, &pSubsheet->subsheets[idx[idxIt]]);
-	}
-
-	[[nodiscard]]
-	constexpr const auto &getSubSheet(const SubSheetIdx &idx) const noexcept {
-		return getSubSheet(idx, 0, &subsheet);
-	}
-
-	[[nodiscard]]
-	constexpr auto &getSubSheet(const SubSheetIdx &idx) noexcept {
-		return getSubSheet(idx, 0, &subsheet);
-	}
-
-	constexpr ox::Error addSubSheet(const SubSheetIdx &idx) noexcept {
-		auto &parent = getSubSheet(idx);
-		if (parent.subsheets.size() < 2) {
-			parent.subsheets.emplace_back(ox::sfmt("Subsheet {}", parent.subsheets.size()), 1, 1, bpp);
-		} else {
-			parent.subsheets.emplace_back("Subsheet 0", parent.columns, parent.rows, bpp);
-			parent.subsheets.emplace_back("Subsheet 1", 1, 1, bpp);
-		}
-		return OxError(0);
-	}
-
-	[[nodiscard]]
-	constexpr static auto rmSubSheet(const SubSheetIdx &idx, std::size_t idxIt, SubSheet *pSubsheet) noexcept {
-		if (idxIt == idx.size() - 1) {
-			return pSubsheet->subsheets.erase(idx[idxIt]).error;
-		}
-		return rmSubSheet(idx, idxIt + 1, &pSubsheet->subsheets[idx[idxIt]]);
-	}
-
-	[[nodiscard]]
-	constexpr auto rmSubSheet(const SubSheetIdx &idx) noexcept {
-		return rmSubSheet(idx, 0, &subsheet);
-	}
-
-	[[nodiscard]]
-	constexpr auto getPixel4Bpp(const geo::Point &pt, const SubSheetIdx &subsheetIdx) const noexcept {
-		oxAssert(bpp == 4, "TileSheetV1::getPixel4Bpp: wrong bpp");
-		auto &s = this->getSubSheet(subsheetIdx);
-		const auto idx = ptToIdx(pt, s.columns);
-		return s.getPixel4Bpp(idx);
-	}
-
-	[[nodiscard]]
-	constexpr auto getPixel8Bpp(const geo::Point &pt, const SubSheetIdx &subsheetIdx) const noexcept {
-		oxAssert(bpp == 8, "TileSheetV1::getPixel8Bpp: wrong bpp");
-		auto &s = this->getSubSheet(subsheetIdx);
-		const auto idx = ptToIdx(pt, s.columns);
-		return s.getPixel8Bpp(idx);
-	}
-
-	[[nodiscard]]
-	auto pixels() const noexcept {
-		ox::Vector<uint8_t> out;
-		subsheet.readPixelsTo(&out);
-		return out;
-	}
-
-};
-
-struct CompactTileSheet {
-	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.CompactTileSheet";
-	static constexpr auto TypeVersion = 1;
-	int8_t bpp = 0;
-	ox::FileAddress defaultPalette;
-	ox::Vector<uint8_t> pixels = {};
-};
-
-oxModelBegin(NostalgiaPalette)
-	oxModelField(colors)
-oxModelEnd()
-
-oxModelBegin(Palette)
-	oxModelField(colors)
-oxModelEnd()
-
-oxModelBegin(NostalgiaGraphic)
-	oxModelField(bpp)
-	oxModelField(rows)
-	oxModelField(columns)
-	oxModelField(defaultPalette)
-	oxModelField(pal)
-	oxModelField(pixels)
-oxModelEnd()
-
-oxModelBegin(TileSheet::SubSheet)
-	oxModelField(name);
-	oxModelField(rows);
-	oxModelField(columns);
-	oxModelField(subsheets)
-	oxModelField(pixels)
-oxModelEnd()
-
-oxModelBegin(TileSheet)
-	oxModelField(bpp)
-	oxModelField(defaultPalette)
-	oxModelField(subsheet)
-oxModelEnd()
-
-oxModelBegin(CompactTileSheet)
-	oxModelField(bpp)
-	oxModelField(defaultPalette)
-	oxModelField(pixels)
-oxModelEnd()
-
 struct Sprite {
 	unsigned idx = 0;
 	int x = 0;
@@ -511,8 +87,8 @@ void setBgCbb(Context *ctx, unsigned bgIdx, unsigned cbb) noexcept;
 /**
  * @param section describes which section of the selected TileSheetSpace to use (e.g. MEM_PALLETE_BG[section])
  */
-ox::Error loadBgTileSheet(Context *ctx, unsigned cbb, const ox::FileAddress &tilesheet,
+ox::Error loadBgTileSheet(Context *ctx, unsigned cbb, const ox::FileAddress &tilesheetAddr,
-                          const ox::FileAddress &palette = nullptr) noexcept;
+                          const ox::FileAddress &paletteAddr = nullptr) noexcept;
 
 ox::Error loadSpriteTileSheet(Context *ctx,
                               const ox::FileAddress &tilesheetAddr,

src/nostalgia/core/glfw/core.cpp

@@ -15,14 +15,14 @@
 namespace nostalgia::core {
 
 ox::Result<ox::UPtr<Context>> init(ox::UPtr<ox::FileSystem> fs, ox::CRStringView appName) noexcept {
-	auto ctx = foundation::init<Context>(std::move(fs), appName);
+	oxRequireM(ctx, foundation::init<Context>(std::move(fs), appName));
 	const auto id = ox::make<GlfwImplData>();
 	ctx->setWindowerData(id);
 	using namespace std::chrono;
 	id->startTime = duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
 	glfwInit();
 	oxReturnError(initGfx(ctx.get()));
-	return ctx;
+	return std::move(ctx);
 }
 
 ox::Error run(Context *ctx) noexcept {

src/nostalgia/core/module.cpp

@@ -4,6 +4,7 @@
 
 #include <ox/model/model.hpp>
 
+#include <nostalgia/foundation/asset.hpp>
 #include <nostalgia/foundation/module.hpp>
 
 #include "gfx.hpp"
@@ -15,11 +16,23 @@ namespace nostalgia::core {
 
 CoreModule CoreModule::mod;
 
-ox::Vector<foundation::BaseConverter*> CoreModule::converters() const noexcept {
+ox::Vector<foundation::TypeDescGenerator> CoreModule::types() const noexcept {
+	return {
+		foundation::generateTypeDesc<TileSheetV1>,
+		foundation::generateTypeDesc<TileSheetV2>,
+		foundation::generateTypeDesc<TileSheet>,
+		foundation::generateTypeDesc<CompactTileSheet>,
+		foundation::generateTypeDesc<NostalgiaPalette>,
+		foundation::generateTypeDesc<Palette>,
+	};
+}
+
+ox::Vector<const foundation::BaseConverter*> CoreModule::converters() const noexcept {
 	return {
 		&nostalgiaPaletteToPaletteConverter,
 		&nostalgiaGraphicToTileSheetConverter,
 		&tileSheetToCompactTileSheetConverter,
+		&tileSheetV2ToTileSheetConverter,
 	};
 }
 
@@ -27,11 +40,13 @@ ox::Vector<foundation::PackTransform> CoreModule::packTransforms() const noexcep
 	return {
 		// convert tilesheets to CompactTileSheets
 		[](foundation::Context *ctx, ox::Buffer *buff) -> ox::Error {
-			oxRequire(hdr, ox::readClawHeader(*buff));
+			oxRequire(hdr, foundation::readAssetHeader(*buff));
-			const auto typeId = ox::buildTypeId(hdr.typeName, hdr.typeVersion);
+			const auto typeId = ox::buildTypeId(hdr.clawHdr.typeName, hdr.clawHdr.typeVersion, hdr.clawHdr.typeParams);
-			if (typeId == ox::buildTypeId<TileSheet>() ||
+			if (typeId == ox::buildTypeId<TileSheetV1>() ||
-			    typeId == ox::buildTypeId<NostalgiaGraphic>()) {
+			    typeId == ox::buildTypeId<TileSheetV2>() ||
-				oxReturnError(foundation::convertBuffToBuff<core::CompactTileSheet>(ctx, *buff, ox::ClawFormat::Metal).moveTo(buff));
+			    typeId == ox::buildTypeId<TileSheet>()) {
+				oxReturnError(foundation::convertBuffToBuff<core::CompactTileSheet>(
+							ctx, *buff, ox::ClawFormat::Metal).moveTo(buff));
 			}
 			return {};
 		},

src/nostalgia/core/module.hpp

@@ -12,14 +12,17 @@ namespace nostalgia::core {
 
 class CoreModule: public foundation::Module {
 	private:
-		mutable NostalgiaPaletteToPaletteConverter nostalgiaPaletteToPaletteConverter;
+		NostalgiaPaletteToPaletteConverter nostalgiaPaletteToPaletteConverter;
-		mutable NostalgiaGraphicToTileSheetConverter nostalgiaGraphicToTileSheetConverter;
+		TileSheetV1ToTileSheetConverter nostalgiaGraphicToTileSheetConverter;
-		mutable TileSheetToCompactTileSheetConverter tileSheetToCompactTileSheetConverter;
+		TileSheetToCompactTileSheetConverter tileSheetToCompactTileSheetConverter;
+		TileSheetV2ToTileSheetConverter tileSheetV2ToTileSheetConverter;
 
 	public:
 		static CoreModule mod;
 		[[nodiscard]]
-		ox::Vector<foundation::BaseConverter*> converters() const noexcept override;
+		ox::Vector<foundation::TypeDescGenerator> types() const noexcept override;
+		[[nodiscard]]
+		ox::Vector<const foundation::BaseConverter*> converters() const noexcept override;
 		[[nodiscard]]
 		ox::Vector<foundation::PackTransform> packTransforms() const noexcept override;
 };

src/nostalgia/core/palette.hpp

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/std/array.hpp>
+#include <ox/std/types.hpp>
+#include <ox/model/def.hpp>
+
+#include <nostalgia/geo/point.hpp>
+#include <nostalgia/geo/size.hpp>
+
+#include "color.hpp"
+#include "context.hpp"
+#include "ptidxconv.hpp"
+
+namespace nostalgia::core {
+
+struct NostalgiaPalette {
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.NostalgiaPalette";
+	static constexpr auto TypeVersion = 1;
+	ox::Vector<Color16> colors = {};
+};
+
+struct Palette {
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.Palette";
+	static constexpr auto TypeVersion = 1;
+	ox::Vector<Color16> colors = {};
+	[[nodiscard]]
+	constexpr Color16 color(auto idx) const noexcept {
+		if (idx < colors.size()) [[likely]] {
+			return colors[idx];
+		}
+		return 0;
+	}
+};
+
+oxModelBegin(NostalgiaPalette)
+	oxModelField(colors)
+oxModelEnd()
+
+oxModelBegin(Palette)
+	oxModelField(colors)
+oxModelEnd()
+
+}

src/nostalgia/core/studio/tilesheeteditor-imgui.cpp

@@ -87,6 +87,9 @@ void TileSheetEditorImGui::keyStateChanged(core::Key key, bool down) {
 	if (!down) {
 		return;
 	}
+	if (key == core::Key::Escape) {
+		m_subsheetEditor.close();
+	}
 	auto pal = model()->pal();
 	if (pal) {
 		const auto colorCnt = pal->colors.size();
@@ -427,4 +430,8 @@ void TileSheetEditorImGui::SubSheetEditor::draw() noexcept {
 	}
 }
 
+void TileSheetEditorImGui::SubSheetEditor::close() noexcept {
+	m_show = false;
+}
+
 }

src/nostalgia/core/studio/tilesheeteditor-imgui.hpp

@@ -40,10 +40,11 @@ class TileSheetEditorImGui: public studio::BaseEditor {
 					m_rows = rows;
 				}
 				void draw() noexcept;
+				void close() noexcept;
 		};
 		std::size_t m_selectedPaletteIdx = 0;
 		Context *m_ctx = nullptr;
-		ox::Vector<ox::String> m_paletteList{};
+		ox::Vector<ox::String> m_paletteList;
 		SubSheetEditor m_subsheetEditor;
 		ox::String m_itemPath;
 		ox::String m_itemName;

src/nostalgia/core/studio/tilesheeteditormodel.cpp

@@ -256,12 +256,12 @@ class AddSubSheetCommand: public TileSheetCommand {
 			auto &parent = m_img->getSubSheet(m_parentIdx);
 			if (m_addedSheets.size() < 2) {
 				auto i = parent.subsheets.size();
-				parent.subsheets.emplace_back(ox::sfmt("Subsheet {}", i), 1, 1, m_img->bpp);
+				parent.subsheets.emplace_back(m_img->idIt++, ox::sfmt("Subsheet {}", i), 1, 1, m_img->bpp);
 			} else {
-				parent.subsheets.emplace_back("Subsheet 0", parent.columns, parent.rows, std::move(parent.pixels));
+				parent.subsheets.emplace_back(m_img->idIt++, "Subsheet 0", parent.columns, parent.rows, std::move(parent.pixels));
 				parent.rows = 0;
 				parent.columns = 0;
-				parent.subsheets.emplace_back("Subsheet 1", 1, 1, m_img->bpp);
+				parent.subsheets.emplace_back(m_img->idIt++, "Subsheet 1", 1, 1, m_img->bpp);
 			}
 		}
 
@@ -507,11 +507,11 @@ class PaletteChangeCommand: public TileSheetCommand {
 		ox::FileAddress m_newPalette;
 
 	public:
-		PaletteChangeCommand(const TileSheet::SubSheetIdx &idx, TileSheet *img, const ox::String &newPalette) noexcept {
+		PaletteChangeCommand(const TileSheet::SubSheetIdx &idx, TileSheet *img, ox::CRStringView newPalette) noexcept {
 			m_idx = idx;
 			m_img = img;
 			m_oldPalette = m_img->defaultPalette;
-			m_newPalette = ox::FileAddress(newPalette);
+			m_newPalette = ox::FileAddress(ox::sfmt<ox::BString<43>>("uuid://{}", newPalette));
 		}
 
 		void redo() noexcept final {
@@ -597,12 +597,27 @@ void TileSheetEditorModel::paste() {
 	pushCommand(ox::make<CutPasteCommand<CommandId::Paste>>(&m_img, m_activeSubsSheetIdx, pt1, pt2, *cb));
 }
 
-const ox::FileAddress &TileSheetEditorModel::palPath() const noexcept {
+ox::StringView TileSheetEditorModel::palPath() const noexcept {
-	return m_img.defaultPalette;
+	auto [path, err] = m_img.defaultPalette.getPath();
+	if (err) {
+		return {};
+	}
+	constexpr ox::StringView uuidPrefix = "uuid://";
+	if (ox::beginsWith(path, uuidPrefix)) {
+		auto uuid = ox::StringView(path + uuidPrefix.bytes(), ox_strlen(path) - uuidPrefix.bytes());
+		auto out = m_ctx->uuidToPath.at(uuid);
+		if (out.error) {
+			return {};
+		}
+		return *out.value;
+	} else {
+		return path;
+	}
 }
 
 ox::Error TileSheetEditorModel::setPalette(const ox::String &path) noexcept {
-	pushCommand(ox::make<PaletteChangeCommand>(activeSubSheetIdx(), &m_img, path));
+	oxRequire(uuid, m_ctx->pathToUuid.at(path));
+	pushCommand(ox::make<PaletteChangeCommand>(activeSubSheetIdx(), &m_img, uuid->toString()));
 	return OxError(0);
 }
 

src/nostalgia/core/studio/tilesheeteditormodel.hpp

@@ -54,7 +54,7 @@ class TileSheetEditorModel: public ox::SignalHandler {
 		constexpr const Palette *pal() const noexcept;
 
 		[[nodiscard]]
-		const ox::FileAddress &palPath() const noexcept;
+		ox::StringView palPath() const noexcept;
 
 		ox::Error setPalette(const ox::String &path) noexcept;
 

src/nostalgia/core/tilesheet.cpp

@@ -0,0 +1,9 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#include "tilesheet.hpp"
+
+namespace nostalgia::core {
+
+}

src/nostalgia/core/tilesheet.hpp

@@ -0,0 +1,566 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/std/array.hpp>
+#include <ox/std/types.hpp>
+#include <ox/model/def.hpp>
+
+#include <nostalgia/geo/point.hpp>
+#include <nostalgia/geo/size.hpp>
+
+#include "color.hpp"
+#include "context.hpp"
+#include "ptidxconv.hpp"
+#include "palette.hpp"
+
+namespace nostalgia::core {
+
+// Predecessor to TileSheet, kept for backward compatibility
+struct TileSheetV1 {
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.NostalgiaGraphic";
+	static constexpr auto TypeVersion = 1;
+	int8_t bpp = 0;
+	// rows and columns are really only used by TileSheetEditor
+	int rows = 1;
+	int columns = 1;
+	ox::FileAddress defaultPalette;
+	Palette pal;
+	ox::Vector<uint8_t> pixels = {};
+};
+
+struct TileSheetV2 {
+	using SubSheetIdx = ox::Vector<std::size_t, 4>;
+
+	struct SubSheet {
+		static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.TileSheet.SubSheet";
+		static constexpr auto TypeVersion = 1;
+		ox::String name;
+		int columns = 0;
+		int rows = 0;
+		ox::Vector<SubSheet> subsheets;
+		ox::Vector<uint8_t> pixels;
+		constexpr SubSheet() noexcept = default;
+		constexpr SubSheet(ox::CRStringView pName, int pColumns, int pRows, int bpp) noexcept:
+			name(pName), columns(pColumns), rows(pRows),
+            pixels(static_cast<std::size_t>(columns * rows * PixelsPerTile) / (bpp == 4 ? 2u : 1u)) {
+		}
+	};
+
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.TileSheet";
+	static constexpr auto TypeVersion = 2;
+	int8_t bpp = 4;
+	ox::FileAddress defaultPalette;
+	SubSheet subsheet{"Root", 1, 1, bpp};
+
+};
+
+using SubSheetId = int32_t;
+
+struct TileSheet {
+	using SubSheetIdx = ox::Vector<std::size_t, 4>;
+
+	struct SubSheet {
+		static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.TileSheet.SubSheet";
+		static constexpr auto TypeVersion = 3;
+		SubSheetId id = 0;
+		ox::String name;
+		int columns = 0;
+		int rows = 0;
+		ox::Vector<SubSheet> subsheets;
+		ox::Vector<uint8_t> pixels;
+
+		constexpr SubSheet() noexcept = default;
+		constexpr SubSheet(const SubSheet &other) noexcept {
+			id        = other.id;
+			name      = other.name;
+			columns   = other.columns;
+			rows      = other.rows;
+			subsheets = other.subsheets;
+			pixels    = other.pixels;
+		}
+		constexpr SubSheet(SubSheet &&other) noexcept {
+			id        = other.id;
+			name      = std::move(other.name);
+			columns   = other.columns;
+			rows      = other.rows;
+			subsheets = std::move(other.subsheets);
+			pixels    = std::move(other.pixels);
+			other.name = "";
+			other.columns = 0;
+			other.rows = 0;
+		}
+		constexpr SubSheet(
+				SubSheetId pId,
+				ox::CRStringView pName,
+				int pColumns,
+				int pRows,
+				int bpp) noexcept:
+			id(pId), name(pName), columns(pColumns), rows(pRows),
+            pixels(static_cast<std::size_t>(columns * rows * PixelsPerTile) / (bpp == 4 ? 2u : 1u)) {
+		}
+		constexpr SubSheet(
+				SubSheetId pId,
+				ox::CRStringView pName,
+				int pColumns,
+				int pRows,
+				ox::Vector<uint8_t> pPixels) noexcept:
+			id(pId), name(pName), columns(pColumns), rows(pRows), pixels(std::move(pPixels)) {
+		}
+
+		constexpr SubSheet &operator=(const SubSheet &other) noexcept = default;
+
+		constexpr SubSheet &operator=(SubSheet &&other) noexcept {
+			name      = std::move(other.name);
+			columns   = other.columns;
+			rows      = other.rows;
+			subsheets = std::move(other.subsheets);
+			pixels    = std::move(other.pixels);
+			return *this;
+		}
+
+		[[nodiscard]]
+		constexpr auto idx(const geo::Point &pt) const noexcept {
+			return ptToIdx(pt, columns);
+		}
+
+		/**
+		 * Reads all pixels of this sheet or its children into the given pixel list
+		 * @param pixels
+		 */
+		constexpr void readPixelsTo(ox::Vector<uint8_t> *pPixels, int8_t bpp) const noexcept {
+			if (subsheets.size()) {
+				for (auto &s: subsheets) {
+					s.readPixelsTo(pPixels);
+				}
+			} else {
+				if (bpp == 4) {
+					for (auto p: this->pixels) {
+						pPixels->emplace_back(p & 0b1111);
+						pPixels->emplace_back(p >> 4);
+					}
+				} else {
+					for (auto p: this->pixels) {
+						pPixels->emplace_back(p);
+					}
+				}
+			}
+		}
+
+		/**
+		 * Reads all pixels of this sheet or its children into the given pixel list
+		 * @param pixels
+		 */
+		constexpr void readPixelsTo(ox::Vector<uint8_t> *pPixels) const noexcept {
+			if (subsheets.size()) {
+				for (auto &s: subsheets) {
+					s.readPixelsTo(pPixels);
+				}
+			} else {
+				for (auto p : this->pixels) {
+					pPixels->emplace_back(p);
+				}
+			}
+		}
+
+		[[nodiscard]]
+		constexpr std::size_t size() const noexcept {
+			return static_cast<std::size_t>(columns) * static_cast<std::size_t>(rows);
+		}
+
+		[[nodiscard]]
+		constexpr std::size_t unusedPixels() const noexcept {
+			std::size_t childrenSize = 0;
+			for (auto &c : subsheets) {
+				childrenSize += c.size();
+			}
+			return size() - childrenSize;
+		}
+
+		[[nodiscard]]
+		constexpr uint8_t getPixel4Bpp(std::size_t idx) const noexcept {
+			if (idx & 1) {
+				return this->pixels[idx / 2] >> 4;
+			} else {
+				return this->pixels[idx / 2] & 0b0000'1111;
+			}
+		}
+
+		[[nodiscard]]
+		constexpr uint8_t getPixel8Bpp(std::size_t idx) const noexcept {
+			return this->pixels[idx];
+		}
+
+		[[nodiscard]]
+		constexpr auto getPixel(int8_t pBpp, std::size_t idx) const noexcept {
+			if (pBpp == 4) {
+				return getPixel4Bpp(idx);
+			} else {
+				return getPixel8Bpp(idx);
+			}
+		}
+
+		[[nodiscard]]
+		constexpr auto getPixel4Bpp(const geo::Point &pt) const noexcept {
+			const auto idx = ptToIdx(pt, columns);
+			return getPixel4Bpp(idx);
+		}
+
+		[[nodiscard]]
+		constexpr auto getPixel8Bpp(const geo::Point &pt) const noexcept {
+			const auto idx = ptToIdx(pt, columns);
+			return getPixel8Bpp(idx);
+		}
+
+		[[nodiscard]]
+		constexpr auto getPixel(int8_t pBpp, const geo::Point &pt) const noexcept {
+			const auto idx = ptToIdx(pt, columns);
+			return getPixel(pBpp, idx);
+		}
+
+		constexpr auto walkPixels(int8_t pBpp, auto callback) const noexcept {
+			if (pBpp == 4) {
+				const auto pixelCnt = ox::min<std::size_t>(static_cast<std::size_t>(columns * rows * PixelsPerTile) / 2,
+				                                           pixels.size());
+				//oxAssert(pixels.size() == pixelCnt, "Pixel count does not match rows and columns");
+				for (std::size_t i = 0; i < pixelCnt; ++i) {
+					const auto colorIdx1 = pixels[i] & 0xF;
+					const auto colorIdx2 = pixels[i] >> 4;
+					callback(i * 2 + 0, colorIdx1);
+					callback(i * 2 + 1, colorIdx2);
+				}
+			} else {
+				const auto pixelCnt = ox::min<std::size_t>(static_cast<std::size_t>(columns * rows * PixelsPerTile),
+				                                           pixels.size());
+				for (std::size_t i = 0; i < pixelCnt; ++i) {
+					const auto p = pixels[i];
+					callback(i, p);
+				}
+			}
+		}
+
+		constexpr void setPixel(int8_t pBpp, uint64_t idx, uint8_t palIdx) noexcept {
+			auto &pixel = this->pixels[idx / 2];
+			if (pBpp == 4) {
+				if (idx & 1) {
+					pixel = (pixel & 0b0000'1111) | (palIdx << 4);
+				} else {
+					pixel = (pixel & 0b1111'0000) | (palIdx);
+				}
+			} else {
+				pixel = palIdx;
+			}
+		}
+
+		constexpr void setPixel(int8_t pBpp, const geo::Point &pt, uint8_t palIdx) noexcept {
+			const auto idx = ptToIdx(pt, columns);
+			setPixel(pBpp, idx, palIdx);
+		}
+
+		constexpr auto setPixelCount(int8_t pBpp, std::size_t cnt) noexcept {
+			switch (pBpp) {
+				case 4:
+					pixels.resize(cnt / 2);
+					return OxError(0);
+				case 8:
+					pixels.resize(cnt);
+					return OxError(0);
+				default:
+					return OxError(1, "Invalid pBpp used for TileSheet::SubSheet::setPixelCount");
+			}
+		}
+
+		/**
+		 * Gets a count of the pixels in this sheet, and not that of its children.
+		 * @param pBpp bits per pixel, need for knowing how to count the pixels
+		 * @return a count of the pixels in this sheet
+		 */
+		[[nodiscard]]
+		constexpr unsigned pixelCnt(int8_t pBpp) const noexcept {
+			return pBpp == 4 ? pixels.size() * 2 : pixels.size();
+		}
+
+		/**
+		 * Gets the offset in tiles of the desired subsheet.
+		 */
+		[[nodiscard]]
+		constexpr ox::Result<unsigned> getTileOffset(
+				const auto &pNamePath,
+				int8_t pBpp,
+				std::size_t pIt = 0,
+				unsigned pCurrentTotal = 0) const noexcept {
+			// pIt == pNamePath.size() - 1 && 
+			if (name != pNamePath[pIt]) {
+				return OxError(2, "Wrong branch");
+			}
+			if (pIt == pNamePath.size() - 1) {
+				return pCurrentTotal;
+			}
+			for (auto &sub : subsheets) {
+				auto [offset, err] = sub.getTileOffset(
+						pNamePath, pBpp, pIt + 1, pCurrentTotal);
+				if (!err) {
+					return offset;
+				}
+				pCurrentTotal += sub.pixelCnt(pBpp) / PixelsPerTile;
+			}
+			return OxError(1, "SubSheet not found");
+		}
+
+		[[nodiscard]]
+		constexpr ox::Result<SubSheetId> getIdFor(
+				const auto &pNamePath,
+				std::size_t pIt = 0) const noexcept {
+			for (auto &sub : subsheets) {
+				if (sub.name == pNamePath[pIt]) {
+					if (pIt == pNamePath.size()) {
+						return id;
+					}
+					return getIdFor(pNamePath, pIt + 1);
+				}
+			}
+			return OxError(1, "SubSheet not found");
+		}
+
+		[[nodiscard]]
+		constexpr ox::Result<ox::StringView> getNameFor(SubSheetId pId) const noexcept {
+			if (id == pId) {
+				return ox::StringView(name);
+			}
+			for (const auto &sub : subsheets) {
+				const auto [name, err] = sub.getNameFor(pId);
+				if (!err) {
+					return name;
+				}
+			}
+			return OxError(1, "SubSheet not found");
+		}
+
+	};
+
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.TileSheet";
+	static constexpr auto TypeVersion = 3;
+	int8_t bpp = 4;
+	SubSheetId idIt = 0;
+	ox::FileAddress defaultPalette;
+	SubSheet subsheet{0, "Root", 1, 1, bpp};
+
+	constexpr TileSheet() noexcept = default;
+	TileSheet(const TileSheet &other) noexcept = default;
+	inline TileSheet(TileSheet &&other) noexcept:
+		bpp(other.bpp),
+		idIt(other.idIt),
+		defaultPalette(std::move(other.defaultPalette)),
+		subsheet(std::move(other.subsheet)) {
+	}
+
+	inline auto &operator=(const TileSheet &other) noexcept {
+		if (this != &other) {
+			bpp = other.bpp;
+			idIt = other.idIt;
+			defaultPalette = other.defaultPalette;
+			subsheet = other.subsheet;
+		}
+		return *this;
+	}
+	inline auto &operator=(TileSheet &&other) noexcept {
+		bpp = other.bpp;
+		idIt = other.idIt;
+		defaultPalette = std::move(other.defaultPalette);
+		subsheet = std::move(other.subsheet);
+		return *this;
+	}
+
+	[[nodiscard]]
+	constexpr auto validateSubSheetIdx(
+			const SubSheetIdx &pIdx,
+			std::size_t pIdxIt,
+			const SubSheet *pSubsheet) noexcept {
+		if (pIdxIt == pIdx.size()) {
+			return pIdx;
+		}
+		const auto currentIdx = pIdx[pIdxIt];
+		if (pSubsheet->subsheets.size() <= currentIdx) {
+			auto out = pIdx;
+			if (pSubsheet->subsheets.size()) {
+				out.back().value = pSubsheet->subsheets.size() - 1;
+			} else {
+				out.pop_back();
+			}
+			return out;
+		}
+		return validateSubSheetIdx(pIdx, pIdxIt + 1, &pSubsheet->subsheets[pIdx[pIdxIt]]);
+	}
+
+	/**
+	 * validateSubSheetIdx takes a SubSheetIdx and moves the index to the
+	 * preceding or parent sheet if the current corresponding sheet does
+	 * not exist.
+	 * @param idx SubSheetIdx to validate and correct
+	 * @return a valid version of idx
+	 */
+	[[nodiscard]]
+	constexpr auto validateSubSheetIdx(const SubSheetIdx &idx) noexcept {
+		return validateSubSheetIdx(idx, 0, &subsheet);
+	}
+
+	[[nodiscard]]
+	constexpr static const SubSheet &getSubSheet(
+			const SubSheetIdx &idx,
+			std::size_t idxIt,
+			const SubSheet *pSubsheet) noexcept {
+		if (idxIt == idx.size()) {
+			return *pSubsheet;
+		}
+		const auto currentIdx = idx[idxIt];
+		if (pSubsheet->subsheets.size() < currentIdx) {
+			return *pSubsheet;
+		}
+		return getSubSheet(idx, idxIt + 1, &pSubsheet->subsheets[currentIdx]);
+	}
+
+	[[nodiscard]]
+	constexpr static SubSheet &getSubSheet(
+			const SubSheetIdx &idx,
+			std::size_t idxIt,
+			SubSheet *pSubsheet) noexcept {
+		if (idxIt == idx.size()) {
+			return *pSubsheet;
+		}
+		return getSubSheet(idx, idxIt + 1, &pSubsheet->subsheets[idx[idxIt]]);
+	}
+
+	[[nodiscard]]
+	constexpr const SubSheet &getSubSheet(const SubSheetIdx &idx) const noexcept {
+		return getSubSheet(idx, 0, &subsheet);
+	}
+
+	[[nodiscard]]
+	constexpr SubSheet &getSubSheet(const SubSheetIdx &idx) noexcept {
+		return getSubSheet(idx, 0, &subsheet);
+	}
+
+	constexpr ox::Error addSubSheet(const SubSheetIdx &idx) noexcept {
+		auto &parent = getSubSheet(idx);
+		if (parent.subsheets.size() < 2) {
+			parent.subsheets.emplace_back(idIt++, ox::sfmt("Subsheet {}", parent.subsheets.size()), 1, 1, bpp);
+		} else {
+			parent.subsheets.emplace_back(idIt++, "Subsheet 0", parent.columns, parent.rows, bpp);
+			parent.subsheets.emplace_back(idIt++, "Subsheet 1", 1, 1, bpp);
+		}
+		return OxError(0);
+	}
+
+	[[nodiscard]]
+	constexpr static auto rmSubSheet(
+			const SubSheetIdx &idx,
+			std::size_t idxIt,
+			SubSheet *pSubsheet) noexcept {
+		if (idxIt == idx.size() - 1) {
+			return pSubsheet->subsheets.erase(idx[idxIt]).error;
+		}
+		return rmSubSheet(idx, idxIt + 1, &pSubsheet->subsheets[idx[idxIt]]);
+	}
+
+	[[nodiscard]]
+	constexpr auto rmSubSheet(const SubSheetIdx &idx) noexcept {
+		return rmSubSheet(idx, 0, &subsheet);
+	}
+
+	[[nodiscard]]
+	constexpr auto getPixel4Bpp(
+			const geo::Point &pt,
+			const SubSheetIdx &subsheetIdx) const noexcept {
+		oxAssert(bpp == 4, "TileSheet::getPixel4Bpp: wrong bpp");
+		auto &s = this->getSubSheet(subsheetIdx);
+		const auto idx = ptToIdx(pt, s.columns);
+		return s.getPixel4Bpp(idx);
+	}
+
+	[[nodiscard]]
+	constexpr auto getPixel8Bpp(
+			const geo::Point &pt,
+			const SubSheetIdx &subsheetIdx) const noexcept {
+		oxAssert(bpp == 8, "TileSheet::getPixel8Bpp: wrong bpp");
+		auto &s = this->getSubSheet(subsheetIdx);
+		const auto idx = ptToIdx(pt, s.columns);
+		return s.getPixel8Bpp(idx);
+	}
+
+	[[nodiscard]]
+	constexpr auto getIdFor(ox::CRStringView path) const noexcept {
+		return subsheet.getIdFor(ox::split<8>(path, '.'));
+	}
+
+	constexpr ox::Result<unsigned> getTileOffset(const auto &pNamePath) const noexcept {
+		return subsheet.getTileOffset(ox::split<8>(pNamePath, '.'), bpp);
+	}
+
+	constexpr ox::Result<ox::StringView> getNameFor(SubSheetId pId) const noexcept {
+		return subsheet.getNameFor(pId);
+	}
+
+	[[nodiscard]]
+	auto pixels() const noexcept {
+		ox::Vector<uint8_t> out;
+		subsheet.readPixelsTo(&out);
+		return out;
+	}
+
+};
+
+struct CompactTileSheet {
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.CompactTileSheet";
+	static constexpr auto TypeVersion = 1;
+	int8_t bpp = 0;
+	ox::FileAddress defaultPalette;
+	ox::Vector<uint8_t> pixels = {};
+};
+
+oxModelBegin(TileSheetV1)
+	oxModelField(bpp)
+	oxModelField(rows)
+	oxModelField(columns)
+	oxModelField(defaultPalette)
+	oxModelField(pal)
+	oxModelField(pixels)
+oxModelEnd()
+
+oxModelBegin(TileSheetV2::SubSheet)
+	oxModelField(name);
+	oxModelField(rows);
+	oxModelField(columns);
+	oxModelField(subsheets)
+	oxModelField(pixels)
+oxModelEnd()
+
+oxModelBegin(TileSheetV2)
+	oxModelField(bpp)
+	oxModelField(defaultPalette)
+	oxModelField(subsheet)
+oxModelEnd()
+
+oxModelBegin(TileSheet::SubSheet)
+	oxModelField(name);
+	oxModelField(rows);
+	oxModelField(columns);
+	oxModelField(subsheets)
+	oxModelField(pixels)
+oxModelEnd()
+
+oxModelBegin(TileSheet)
+	oxModelField(bpp)
+	oxModelField(idIt)
+	oxModelField(defaultPalette)
+	oxModelField(subsheet)
+oxModelEnd()
+
+oxModelBegin(CompactTileSheet)
+	oxModelField(bpp)
+	oxModelField(defaultPalette)
+	oxModelField(pixels)
+oxModelEnd()
+
+}

src/nostalgia/core/typeconv.cpp

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#include "typeconv.hpp"
+
+namespace nostalgia::core {
+
+ox::Error NostalgiaPaletteToPaletteConverter::convert(
+		foundation::Context*,
+		NostalgiaPalette *src,
+		Palette *dst) const noexcept {
+	dst->colors = std::move(src->colors);
+	return {};
+}
+
+ox::Error TileSheetV1ToTileSheetConverter::convert(
+		foundation::Context*,
+		TileSheetV1 *src,
+		TileSheet *dst) const noexcept {
+	dst->bpp              = src->bpp;
+	dst->defaultPalette   = std::move(src->defaultPalette);
+	dst->subsheet.name    = "Root";
+	dst->subsheet.rows    = src->rows;
+	dst->subsheet.columns = src->columns;
+	dst->subsheet.pixels  = std::move(src->pixels);
+	return {};
+}
+
+ox::Error TileSheetToCompactTileSheetConverter::convert(
+		foundation::Context*,
+		TileSheet *src,
+		CompactTileSheet *dst) const noexcept {
+	dst->bpp            = src->bpp;
+	dst->defaultPalette = std::move(src->defaultPalette);
+	dst->pixels         = src->pixels();
+	return {};
+}
+
+
+void TileSheetV2ToTileSheetConverter::convertSubsheet(
+		TileSheetV2::SubSheet *src,
+		TileSheet::SubSheet *dst,
+		SubSheetId *idIt) noexcept {
+	dst->id      = *idIt;
+	dst->name    = std::move(src->name);
+	dst->columns = src->columns;
+	dst->rows    = src->rows;
+	dst->pixels  = std::move(src->pixels);
+	++*idIt;
+	dst->subsheets.resize(src->subsheets.size());
+	for (auto i = 0u; i < src->subsheets.size(); ++i) {
+		convertSubsheet(&src->subsheets[i], &dst->subsheets[i], idIt);
+	}
+}
+
+ox::Error TileSheetV2ToTileSheetConverter::convert(
+		foundation::Context*,
+		TileSheetV2 *src,
+		TileSheet *dst) const noexcept {
+	dst->bpp            = src->bpp;
+	dst->defaultPalette = std::move(src->defaultPalette);
+	convertSubsheet(&src->subsheet, &dst->subsheet, &dst->idIt);
+	return {};
+}
+
+}

src/nostalgia/core/typeconv.hpp

@@ -15,32 +15,26 @@ namespace nostalgia::core {
 
 // Type converters
 
-struct NostalgiaPaletteToPaletteConverter: public foundation::Converter<NostalgiaPalette, Palette> {
+class NostalgiaPaletteToPaletteConverter: public foundation::Converter<NostalgiaPalette, Palette> {
-	ox::Error convert(foundation::Context*, NostalgiaPalette *src, Palette *dst) noexcept final {
+	ox::Error convert(foundation::Context*, NostalgiaPalette *src, Palette *dst) const noexcept final;
-		dst->colors = std::move(src->colors);
-		return {};
-	}
 };
 
-struct NostalgiaGraphicToTileSheetConverter: public foundation::Converter<NostalgiaGraphic, TileSheet> {
+class TileSheetV1ToTileSheetConverter: public foundation::Converter<TileSheetV1, TileSheet> {
-	ox::Error convert(foundation::Context*, NostalgiaGraphic *src, TileSheet *dst) noexcept final {
+	ox::Error convert(foundation::Context*, TileSheetV1 *src, TileSheet *dst) const noexcept final;
-		dst->bpp              = src->bpp;
-		dst->subsheet.name    = "Root";
-		dst->subsheet.rows    = src->rows;
-		dst->subsheet.columns = src->columns;
-		dst->defaultPalette   = std::move(src->defaultPalette);
-		dst->subsheet.pixels  = std::move(src->pixels);
-		return {};
-	}
 };
 
-struct TileSheetToCompactTileSheetConverter: public foundation::Converter<TileSheet, CompactTileSheet> {
+class TileSheetToCompactTileSheetConverter: public foundation::Converter<TileSheet, CompactTileSheet> {
-	ox::Error convert(foundation::Context*, TileSheet *src, CompactTileSheet *dst) noexcept final {
+	ox::Error convert(foundation::Context*, TileSheet *src, CompactTileSheet *dst) const noexcept final;
-		dst->bpp            = src->bpp;
+};
-		dst->defaultPalette = std::move(src->defaultPalette);
+
-		dst->pixels         = src->pixels();
+class TileSheetV2ToTileSheetConverter: public foundation::Converter<TileSheetV2, TileSheet> {
-		return {};
+	static void convertSubsheet(
-	}
+			TileSheetV2::SubSheet *src,
+			TileSheet::SubSheet *dst,
+			SubSheetId *idIt) noexcept;
+
+	ox::Error convert(foundation::Context*, TileSheetV2 *src, TileSheet *dst) const noexcept final;
+
 };
 
 }

src/nostalgia/core/userland/gfx.cpp

@@ -24,7 +24,7 @@ struct TileSheetData {
 };
 
 ox::Result<TileSheetData> loadTileSheet(Context *ctx, const CompactTileSheet &tilesheet) noexcept {
-	const unsigned bytesPerTile = tilesheet.bpp == 8 ? 64 : 32;
+	const unsigned bytesPerTile = tilesheet.bpp == 8 ? PixelsPerTile : PixelsPerTile / 2;
 	const auto tiles = tilesheet.pixels.size() / bytesPerTile;
 	constexpr int width = 8;
 	const int height = 8 * static_cast<int>(tiles);

src/nostalgia/core/userland/gfx_opengl.cpp

@@ -511,7 +511,10 @@ void setSprite(Context *ctx,
 }
 
 void setTile(Context *ctx, unsigned bgIdx, int column, int row, uint8_t tile) noexcept {
-	//oxTracef("nostalgia::core::gfx::gl", "setTile(ctx, {}, {}, {}, {})", bgIdx, column, row, tile);
+	oxTracef(
+			"nostalgia::core::gfx::setTile",
+			"bgIdx: {}, column: {}, row: {}, tile: {}",
+			bgIdx, column, row, tile);
 	const auto id = ctx->rendererData<renderer::GlImplData>();
 	const auto z = static_cast<unsigned>(bgIdx);
 	const auto y = static_cast<unsigned>(row);
@@ -520,8 +523,10 @@ void setTile(Context *ctx, unsigned bgIdx, int column, int row, uint8_t tile) no
 	auto &bg = id->cbbs[z];
 	auto vbo = &bg.vertices[i * renderer::BgVertexVboLength];
 	auto ebo = &bg.elements[i * renderer::BgVertexEboLength];
-	renderer::setTileBufferObject(ctx, i * renderer::BgVertexVboRows,
+	renderer::setTileBufferObject(
-	                              static_cast<float>(x), static_cast<float>(y), tile, vbo, ebo);
+			ctx, i * renderer::BgVertexVboRows,
+	      static_cast<float>(x), static_cast<float>(y),
+			tile, vbo, ebo);
 	bg.updated = true;
 }
 

src/nostalgia/foundation/CMakeLists.txt

@@ -1,7 +1,7 @@
 
 add_library(
 	NostalgiaFoundation
-		foundation.hpp
+		asset.cpp
 		media.cpp
 		module.cpp
 		typeconv.cpp
@@ -15,12 +15,16 @@ target_link_libraries(
 		OxModel
 		OxStd
 )
+
 install(
 	FILES
+		assetmanager.hpp
+		context.hpp
+		foundation.hpp
+		asset.hpp
 		media.hpp
 		module.hpp
 		typeconv.hpp
 	DESTINATION
-		include/nostalgia/core
+		include/nostalgia/foundation
 )
-

src/nostalgia/foundation/asset.cpp

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#include "asset.hpp"
+
+namespace nostalgia::foundation {
+
+ox::Result<ox::UUID> readUuidHeader(const ox::Buffer &buff) noexcept {
+	return readUuidHeader(buff.data(), buff.size());
+}
+
+ox::Result<ox::UUID> readUuidHeader(const char *buff, std::size_t buffLen) noexcept {
+	if (buffLen < 40) {
+		return OxError(1, "Insufficient data contain complete Nostalgia header");
+	}
+	if (ox_memcmp(buff, "N1;", 3) != 0) {
+		return OxError(2, "No Nostalgia header data");
+	}
+	return ox::UUID::fromString(ox::StringView(buff + 3, 36));
+}
+
+ox::Result<ox::ModelObject> readAsset(ox::TypeStore *ts, const ox::Buffer &buff) noexcept {
+	std::size_t offset = 0;
+	if (!readUuidHeader(buff).error) {
+		offset = 40; // the size of N1 headers
+	}
+	return ox::readClaw(ts, buff.data() + offset, buff.size() - offset);
+}
+
+ox::Result<AssetHdr> readAssetHeader(const char *buff, std::size_t buffLen) noexcept {
+	AssetHdr out;
+	const auto err = readUuidHeader(buff, buffLen).moveTo(&out.uuid);
+	const auto offset = err ? 0 : 40;
+	buff = buff + offset;
+	buffLen = buffLen - offset;
+	oxReturnError(ox::readClawHeader(buff, buffLen).moveTo(&out.clawHdr));
+	return out;
+}
+
+ox::Result<AssetHdr> readAssetHeader(const ox::Buffer &buff) noexcept {
+	return readAssetHeader(buff.data(), buff.size());
+}
+
+}

src/nostalgia/foundation/asset.hpp

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/std/defines.hpp>
+
+#include <ox/claw/claw.hpp>
+#include <ox/fs/fs.hpp>
+
+#include <nostalgia/foundation/context.hpp>
+
+namespace nostalgia::foundation {
+
+[[nodiscard]]
+ox::Result<ox::UUID> readUuidHeader(const ox::Buffer &buff) noexcept;
+
+ox::Result<ox::UUID> readUuidHeader(const char *buff, std::size_t buffLen) noexcept;
+
+ox::Error writeUuidHeader(ox::Writer_c auto *writer, const ox::UUID &uuid) noexcept {
+	const auto hdr = ox::sfmt<ox::BString<40>>("N1;{};", uuid.toString());
+	return write(writer, hdr);
+}
+
+template<typename T>
+ox::Result<T> readAsset(const ox::Buffer &buff) noexcept {
+	std::size_t offset = 0;
+	const auto err = readUuidHeader(buff).error;
+	if (!err) {
+		offset = 40; // the size of N1 headers
+	}
+	return ox::readClaw<T>(buff.data() + offset, buff.size() - offset);
+}
+
+ox::Result<ox::ModelObject> readAsset(ox::TypeStore *ts, const ox::Buffer &buff) noexcept;
+
+struct AssetHdr {
+	ox::UUID uuid;
+	ox::ClawHeader clawHdr;
+};
+
+ox::Result<AssetHdr> readAssetHeader(const char *buff, std::size_t buffLen) noexcept;
+
+ox::Result<AssetHdr> readAssetHeader(const ox::Buffer &buff) noexcept;
+
+}

src/nostalgia/foundation/assetmanager.hpp

@@ -28,6 +28,7 @@ class AssetContainer {
 		ox::Signal<ox::Error()> updated;
 
 	private:
+		ox::UUID uuid;
 		T m_obj;
 		mutable int m_references = 0;
 
@@ -190,14 +191,14 @@ class AssetManager {
 				ox::HashMap<ox::String, ox::UniquePtr<AssetContainer<T>>> m_cache;
 
 			public:
-				ox::Result<AssetRef<T>> getAsset(const ox::String &path) const noexcept {
+				ox::Result<AssetRef<T>> getAsset(const ox::String &assetId) const noexcept {
-					auto out = m_cache.at(path);
+					auto out = m_cache.at(assetId);
 					oxReturnError(out);
 					return AssetRef<T>(out.value->get());
 				}
 
-				ox::Result<AssetRef<T>> setAsset(const ox::String &path, const T &obj) noexcept {
+				ox::Result<AssetRef<T>> setAsset(const ox::String &assetId, const T &obj) noexcept {
-					auto &p = m_cache[path];
+					auto &p = m_cache[assetId];
 					if (!p) {
 						p = ox::make_unique<AssetContainer<T>>(obj);
 					} else {
@@ -207,8 +208,8 @@ class AssetManager {
 					return AssetRef<T>(p.get());
 				}
 
-				ox::Result<AssetRef<T>> setAsset(const ox::String &path, T &&obj) noexcept {
+				ox::Result<AssetRef<T>> setAsset(const ox::String &assetId, T &&obj) noexcept {
-					auto &p = m_cache[path];
+					auto &p = m_cache[assetId];
 					if (!p) {
 						p = ox::make_unique<AssetContainer<T>>(obj);
 					} else {
@@ -221,7 +222,7 @@ class AssetManager {
 				void gc() noexcept final {
 					for (const auto &ack : m_cache.keys()) {
 						auto &ac = m_cache[ack];
-						if (ac->references()) {
+						if (!ac->references()) {
 							m_cache.erase(ack);
 						}
 					}
@@ -243,15 +244,15 @@ class AssetManager {
 
 	public:
 		template<typename T>
-		ox::Result<AssetRef<T>> getAsset(const ox::String &path) noexcept {
+		ox::Result<AssetRef<T>> getAsset(const ox::String &assetId) noexcept {
 			auto m = getTypeManager<T>();
-			return m->getAsset(path);
+			return m->getAsset(assetId);
 		}
 
 		template<typename T>
-		ox::Result<AssetRef<T>> setAsset(const ox::String &path, const T &obj) noexcept {
+		ox::Result<AssetRef<T>> setAsset(const ox::String &assetId, const T &obj) noexcept {
 			auto m = getTypeManager<T>();
-			return m->setAsset(path, obj);
+			return m->setAsset(assetId, obj);
 		}
 
 		void gc() noexcept {

src/nostalgia/foundation/context.hpp

@@ -21,7 +21,9 @@ class Context {
 		ox::StringView appName = "Nostalgia Foundation App";
 #ifndef OX_BARE_METAL
 		AssetManager assetManager;
-		ox::Vector<class BaseConverter*> converters;
+		ox::HashMap<ox::String, ox::UUID> pathToUuid;
+		ox::HashMap<ox::UUIDStr, ox::String> uuidToPath;
+		ox::Vector<const class BaseConverter*> converters;
 		ox::Vector<PackTransform> packTransforms;
 #else
 		std::size_t preloadSectionOffset = 0;

src/nostalgia/foundation/foundation.hpp

@@ -7,15 +7,16 @@
 #include <ox/std/memory.hpp>
 
 #include "context.hpp"
+#include "media.hpp"
 #include "module.hpp"
 
 namespace nostalgia::foundation {
 
 template<typename Ctx = foundation::Context>
-ox::UPtr<Ctx> init(ox::UPtr<ox::FileSystem> &&fs, ox::CRStringView appName) noexcept {
+ox::Result<ox::UPtr<Ctx>> init(ox::UPtr<ox::FileSystem> &&fs, ox::CRStringView appName) noexcept {
 	auto ctx = ox::make_unique<Ctx>();
-	ctx->rom = std::move(fs);
 	ctx->appName = appName;
+	oxIgnoreError(setRomFs(ctx.get(), std::move(fs)));
 	auto mods = modules();
 	if (mods) {
 		for (auto &mod : *mods) {

src/nostalgia/foundation/media.cpp

@@ -40,6 +40,43 @@ ox::Result<void*> findPreloadSection() noexcept {
 	return OxError(1, "findPreloadSection is unsupported on this platform");
 }
 
+static void clearUuidMap(Context *ctx) noexcept {
+	ctx->uuidToPath.clear();
+	ctx->pathToUuid.clear();
+}
+
+void createUuidMapping(Context *ctx, const ox::String &filePath, const ox::UUID &uuid) noexcept {
+	ctx->pathToUuid[filePath] = uuid;
+	ctx->uuidToPath[uuid.toString()] = filePath;
+}
+
+static ox::Error buildUuidMap(Context *ctx, ox::CRStringView path) noexcept {
+	oxRequire(files, ctx->rom->ls(path));
+	for (const auto &f : files) {
+		oxRequire(filePath, ox::join("/", ox::Array<ox::StringView, 2>{path, f}));
+		oxRequire(stat, ctx->rom->stat(filePath));
+		if (stat.fileType == ox::FileType::NormalFile) {
+			oxRequire(data, ctx->rom->read(filePath));
+			const auto [hdr, err] = readAssetHeader(data);
+			if (!err) {
+				createUuidMapping(ctx, filePath, hdr.uuid);
+			}
+		} else if (stat.fileType == ox::FileType::Directory) {
+			if (!beginsWith(f, ".")) {
+				oxReturnError(buildUuidMap(ctx, filePath));
+			}
+		}
+	}
+	return {};
+}
+
+ox::Error buildUuidMap(Context *ctx) noexcept {
+	if (!ctx->rom) {
+		return OxError(1, "No ROM FS");
+	}
+	return buildUuidMap(ctx, "");
+}
+
 }
 
 #else
@@ -50,6 +87,13 @@ ox::Result<void*> findPreloadSection() noexcept {
 
 namespace nostalgia::foundation {
 
+static void clearUuidMap(Context*) noexcept {
+}
+
+ox::Error buildUuidMap(Context*) noexcept {
+	return {};
+}
+
 ox::Result<char*> loadRom(ox::CRStringView) noexcept {
 	// put the header in the wrong order to prevent mistaking this code for the
 	// media section
@@ -92,6 +136,12 @@ ox::Result<std::size_t> getPreloadAddr(foundation::Context *ctx, const ox::FileA
 
 namespace nostalgia::foundation {
 
+ox::Error setRomFs(Context *ctx, ox::UPtr<ox::FileSystem> fs) noexcept {
+	ctx->rom = std::move(fs);
+	clearUuidMap(ctx);
+	return buildUuidMap(ctx);
+}
+
 ox::Result<ox::UniquePtr<ox::FileSystem>> loadRomFs(ox::CRStringView path) noexcept {
 	const auto lastDot = ox_lastIndexOf(path, '.');
 	const auto fsExt = lastDot != -1 ? path.substr(static_cast<std::size_t>(lastDot)) : "";

src/nostalgia/foundation/media.hpp

@@ -10,12 +10,15 @@
 #include <ox/fs/fs.hpp>
 #include <ox/model/metadata.hpp>
 
-#include <nostalgia/foundation/context.hpp>
 
+#include "asset.hpp"
+#include "context.hpp"
 #include "typeconv.hpp"
 
 namespace nostalgia::foundation {
 
+// Pointer to preloaded data that can be stored in FS in place of the actual
+// data.
 struct PreloadPtr {
 	static constexpr auto TypeName = "net.drinkingtea.ox.PreloadPtr";
 	static constexpr auto TypeVersion = 1;
@@ -29,12 +32,15 @@ oxModelEnd()
 ox::Result<std::size_t> getPreloadAddr(foundation::Context *ctx, const ox::FileAddress &file) noexcept;
 ox::Result<std::size_t> getPreloadAddr(foundation::Context *ctx, ox::CRStringView file) noexcept;
 
-template<typename T>
-ox::Result<foundation::AssetRef<T>> readObj([[maybe_unused]] foundation::Context *ctx, [[maybe_unused]] ox::CRStringView path,
-                                            [[maybe_unused]] bool forceLoad = false) noexcept {
 #ifndef OX_BARE_METAL
-	const auto readConvert = [ctx](const ox::Buffer &buff) -> ox::Result<T> {
+
-		auto [obj, err] = ox::readClaw<T>(buff);
+template<typename T>
+ox::Result<foundation::AssetRef<T>> readObjFile(
+		foundation::Context *ctx,
+		ox::StringView assetId,
+		bool forceLoad) noexcept {
+	constexpr auto readConvert = [](Context *ctx, const ox::Buffer &buff) -> ox::Result<T> {
+		auto [obj, err] = readAsset<T>(buff);
 		if (err) {
 			if (err != ox::Error_ClawTypeVersionMismatch && err != ox::Error_ClawTypeMismatch) {
 				return err;
@@ -43,36 +49,72 @@ ox::Result<foundation::AssetRef<T>> readObj([[maybe_unused]] foundation::Context
 		}
 		return std::move(obj);
 	};
+	ox::StringView path;
+	ox::UUIDStr uuidStr;
+	if (beginsWith(assetId, "uuid://")) {
+		assetId = assetId.substr(7);
+		path = ctx->uuidToPath[assetId];
+	} else {
+		path = assetId;
+		uuidStr = ctx->pathToUuid[path].toString();
+		assetId = uuidStr;
+	}
 	if (forceLoad) {
 		oxRequire(buff, ctx->rom->read(path));
-		oxRequire(obj, readConvert(buff));
+		oxRequire(obj, readConvert(ctx, buff));
-		oxRequire(cached, ctx->assetManager.setAsset(path, obj));
+		oxRequire(cached, ctx->assetManager.setAsset(assetId, obj));
-		return std::move(cached);
+		return cached;
 	} else {
-		auto [cached, err] = ctx->assetManager.getAsset<T>(path);
+		auto [cached, err] = ctx->assetManager.getAsset<T>(assetId);
 		if (err) {
 			oxRequire(buff, ctx->rom->read(path));
-			oxRequire(obj, readConvert(buff));
+			oxRequire(obj, readConvert(ctx, buff));
-			oxReturnError(ctx->assetManager.setAsset(path, obj).moveTo(&cached));
+			oxReturnError(ctx->assetManager.setAsset(assetId, obj).moveTo(&cached));
 		}
-		return std::move(cached);
+		return cached;
 	}
+}
+
 #else
+
+template<typename T>
+ox::Result<foundation::AssetRef<T>> readObjNoCache(
+		foundation::Context *ctx,
+		ox::CRStringView assetId) noexcept {
 	if constexpr(ox::preloadable<T>::value) {
-		oxRequire(addr, getPreloadAddr(ctx, path));
+		oxRequire(addr, getPreloadAddr(ctx, assetId));
 		return foundation::AssetRef<T>(reinterpret_cast<const T*>(addr));
 	} else {
 		return OxError(1);
 	}
+}
+
+#endif
+
+void createUuidMapping(Context *ctx, const ox::String &filePath, const ox::UUID &uuid) noexcept;
+
+ox::Error buildUuidMap(Context *ctx) noexcept;
+
+template<typename T>
+ox::Result<foundation::AssetRef<T>> readObj(
+		[[maybe_unused]] foundation::Context *ctx,
+		[[maybe_unused]] ox::CRStringView assetId,
+		[[maybe_unused]] bool forceLoad = false) noexcept {
+#ifndef OX_BARE_METAL
+	return readObjFile<T>(ctx, assetId, forceLoad);
+#else
+	return readObjNoCache<T>(ctx, assetId);
 #endif
 }
 
 template<typename T>
-ox::Result<foundation::AssetRef<T>> readObj(foundation::Context *ctx, const ox::FileAddress &file,
+ox::Result<foundation::AssetRef<T>> readObj(
-                                            [[maybe_unused]] bool forceLoad = false) noexcept {
+		foundation::Context *ctx,
+		const ox::FileAddress &file,
+		[[maybe_unused]] bool forceLoad = false) noexcept {
 #ifndef OX_BARE_METAL
-	oxRequire(path, file.getPath());
+	oxRequire(assetId, file.getPath());
-	return readObj<T>(ctx, ox::StringView(path), forceLoad);
+	return readObj<T>(ctx, ox::StringView(assetId), forceLoad);
 #else
 	if constexpr(ox::preloadable<T>::value) {
 		oxRequire(addr, getPreloadAddr(ctx, file));
@@ -84,15 +126,20 @@ ox::Result<foundation::AssetRef<T>> readObj(foundation::Context *ctx, const ox::
 }
 
 template<typename T>
-ox::Error writeObj(foundation::Context *ctx, const ox::FileAddress &file, const T &obj,
+ox::Error writeObj(
-                   ox::ClawFormat fmt = ox::ClawFormat::Metal) noexcept {
+		foundation::Context *ctx,
+		const ox::FileAddress &file,
+		const T &obj,
+		ox::ClawFormat fmt = ox::ClawFormat::Metal) noexcept {
 	oxRequire(objBuff, ox::writeClaw(&obj, fmt));
 	return ctx->rom->write(file, objBuff.data(), objBuff.size());
 }
 
+ox::Error setRomFs(Context *ctx, ox::UPtr<ox::FileSystem> fs) noexcept;
+
 ox::Result<ox::UniquePtr<ox::FileSystem>> loadRomFs(ox::CRStringView path) noexcept;
 
-ox::Result<char*> loadRom(ox::CRStringView path = "") noexcept;
+ox::Result<char*> loadRom(ox::CRStringView assetId = "") noexcept;
 
 void unloadRom(char*) noexcept;
 

src/nostalgia/foundation/module.cpp

@@ -18,7 +18,11 @@ const ox::Vector<const Module*> *modules() noexcept {
 }
 
 
-ox::Vector<foundation::BaseConverter*> Module::converters() const noexcept {
+ox::Vector<TypeDescGenerator> Module::types() const noexcept {
+	return {};
+}
+
+ox::Vector<const foundation::BaseConverter*> Module::converters() const noexcept {
 	return {};
 }
 

src/nostalgia/foundation/module.hpp

@@ -5,11 +5,19 @@
 #pragma once
 
 #include <ox/std/vector.hpp>
+#include <ox/model/descwrite.hpp>
 
 #include "typeconv.hpp"
 
 namespace nostalgia::foundation {
 
+using TypeDescGenerator = ox::Error(*)(ox::TypeStore*);
+
+template<typename T>
+ox::Error generateTypeDesc(ox::TypeStore *ts) noexcept {
+	return ox::buildTypeDef<T>(ts).error;
+}
+
 class Module {
 	public:
 		constexpr Module() noexcept = default;
@@ -18,8 +26,11 @@ class Module {
 		Module &operator=(const Module&) noexcept = delete;
 		Module &operator=(Module&&) noexcept = delete;
 		constexpr virtual ~Module() noexcept = default;
+
 		[[nodiscard]]
-		virtual ox::Vector<foundation::BaseConverter*> converters() const noexcept;
+		virtual ox::Vector<TypeDescGenerator> types() const noexcept;
+		[[nodiscard]]
+		virtual ox::Vector<const foundation::BaseConverter*> converters() const noexcept;
 		[[nodiscard]]
 		virtual ox::Vector<PackTransform> packTransforms() const noexcept;
 };

src/nostalgia/foundation/typeconv.cpp

@@ -4,6 +4,7 @@
 
 #include <ox/claw/read.hpp>
 
+#include "media.hpp"
 #include "typeconv.hpp"
 
 namespace nostalgia::foundation {
@@ -11,9 +12,10 @@ namespace nostalgia::foundation {
 #ifndef OX_BARE_METAL
 
 [[nodiscard]]
-static auto findConverter(foundation::Context *ctx,
+static ox::Result<const BaseConverter*> findConverter(
-                          ox::CRStringView srcTypeName, int srcTypeVersion,
+		foundation::Context *ctx,
-                          ox::CRStringView dstTypeName, int dstTypeVersion) noexcept -> ox::Result<BaseConverter*> {
+		ox::CRStringView srcTypeName, int srcTypeVersion,
+		ox::CRStringView dstTypeName, int dstTypeVersion) noexcept {
 	for (auto &c : ctx->converters) {
 		if (c->matches(srcTypeName, srcTypeVersion, dstTypeName, dstTypeVersion)) {
 			return c;
@@ -22,13 +24,14 @@ static auto findConverter(foundation::Context *ctx,
 	return OxError(1, "Could not find converter");
 };
 
-static ox::Result<ox::UniquePtr<Wrap>> convert(foundation::Context *ctx, const ox::Buffer &srcBuffer,
+static ox::Result<ox::UniquePtr<Wrap>> convert(
-                                               ox::CRStringView srcTypeName, int srcTypeVersion,
+		foundation::Context *ctx, const ox::Buffer &srcBuffer,
-                                               ox::CRStringView dstTypeName, int dstTypeVersion) noexcept {
+		ox::CRStringView srcTypeName, int srcTypeVersion,
+		ox::CRStringView dstTypeName, int dstTypeVersion) noexcept {
 	// look for direct converter
 	auto [c, err] = findConverter(ctx, srcTypeName, srcTypeVersion, dstTypeName, dstTypeVersion);
 	if (!err) {
-		return c->convertBuffToPtr(nullptr, srcBuffer);
+		return c->convertBuffToPtr(ctx, srcBuffer);
 	}
 	// try to chain multiple converters
 	for (const auto &subConverter : ctx->converters) {
@@ -45,9 +48,13 @@ static ox::Result<ox::UniquePtr<Wrap>> convert(foundation::Context *ctx, const o
 	return OxError(1, "Could not convert between types");
 }
 
-ox::Result<ox::UniquePtr<Wrap>> convert(foundation::Context *ctx, const ox::Buffer &srcBuffer, ox::CRStringView dstTypeName, int dstTypeVersion) noexcept {
+ox::Result<ox::UniquePtr<Wrap>> convert(
-	oxRequire(hdr, ox::readClawHeader(srcBuffer));
+		foundation::Context *ctx,
-	return convert(ctx, srcBuffer, hdr.typeName, hdr.typeVersion, dstTypeName, dstTypeVersion);
+		const ox::Buffer &srcBuffer,
+		ox::CRStringView dstTypeName,
+		int dstTypeVersion) noexcept {
+	oxRequire(hdr, readAssetHeader(srcBuffer));
+	return convert(ctx, srcBuffer, hdr.clawHdr.typeName, hdr.clawHdr.typeVersion, dstTypeName, dstTypeVersion);
 }
 
 #endif

src/nostalgia/foundation/typeconv.hpp

@@ -11,6 +11,7 @@
 #include <ox/claw/write.hpp>
 
 #include "context.hpp"
+#include "media.hpp"
 
 namespace nostalgia::foundation {
 
@@ -19,6 +20,28 @@ class Wrap {
 		virtual ~Wrap() = default;
 };
 
+template<typename T>
+class WrapIndirect: public Wrap {
+	private:
+		T *m_obj = nullptr;
+
+	public:
+		template<typename... Args>
+		constexpr explicit WrapIndirect(Args &&...args): m_obj(ox::forward<Args>(args)...) {
+		}
+
+		[[nodiscard]]
+		constexpr auto obj() const noexcept {
+			return &m_obj;
+		}
+
+		[[nodiscard]]
+		constexpr auto obj() noexcept {
+			return &m_obj;
+		}
+
+};
+
 template<typename T>
 class WrapInline: public Wrap {
 	private:
@@ -53,20 +76,20 @@ class BaseConverter {
 		virtual ~BaseConverter() noexcept = default;
 
 		[[nodiscard]]
-		virtual ox::StringView srcTypeName() noexcept = 0;
+		virtual ox::StringView srcTypeName() const noexcept = 0;
 
 		[[nodiscard]]
-		virtual int srcTypeVersion() noexcept = 0;
+		virtual int srcTypeVersion() const noexcept = 0;
 
 		[[nodiscard]]
-		virtual bool srcMatches(ox::CRStringView srcTypeName, int srcTypeVersion) const noexcept = 0;
+		virtual bool srcMatches(ox::CRStringView pSrcTypeName, int pSrcTypeVersion) const noexcept = 0;
 
 		[[nodiscard]]
 		virtual bool dstMatches(ox::CRStringView dstTypeName, int dstTypeVersion) const noexcept = 0;
 
-		virtual ox::Result<ox::UniquePtr<Wrap>> convertPtrToPtr(foundation::Context *ctx, Wrap *src) noexcept = 0;
+		virtual ox::Result<ox::UniquePtr<Wrap>> convertPtrToPtr(foundation::Context *ctx, Wrap *src) const noexcept = 0;
 
-		virtual ox::Result<ox::UniquePtr<Wrap>> convertBuffToPtr(foundation::Context *ctx, const ox::Buffer &srcBuff) noexcept = 0;
+		virtual ox::Result<ox::UniquePtr<Wrap>> convertBuffToPtr(foundation::Context *ctx, const ox::Buffer &srcBuff) const noexcept = 0;
 
 		[[nodiscard]]
 		inline bool matches(ox::CRStringView srcTypeName, int srcTypeVersion,
@@ -80,47 +103,48 @@ class BaseConverter {
 template<typename SrcType, typename DstType>
 class Converter: public BaseConverter {
 	public:
-		virtual ox::Error convert(foundation::Context *ctx, SrcType*, DstType*) noexcept = 0;
-
 		[[nodiscard]]
-		ox::StringView srcTypeName() noexcept final {
+		ox::StringView srcTypeName() const noexcept final {
 			return ox::requireModelTypeName<SrcType>();
 		}
 
 		[[nodiscard]]
-		int srcTypeVersion() noexcept final {
+		int srcTypeVersion() const noexcept final {
 			return ox::requireModelTypeVersion<SrcType>();
 		}
 
 		[[nodiscard]]
-		bool srcMatches(ox::CRStringView srcTypeName, int srcTypeVersion) const noexcept final {
+		bool srcMatches(ox::CRStringView pSrcTypeName, int pSrcTypeVersion) const noexcept final {
-			static constexpr auto SrcTypeName = ox::requireModelTypeName<SrcType>();
+			static const auto SrcTypeName = ox::requireModelTypeName<SrcType>();
-			static constexpr auto SrcTypeVersion = ox::requireModelTypeVersion<SrcType>();
+			static const auto SrcTypeVersion = ox::requireModelTypeVersion<SrcType>();
-			return ox_strcmp(srcTypeName, SrcTypeName) == 0
+			return pSrcTypeName == SrcTypeName
-				 && srcTypeVersion == SrcTypeVersion;
+				 && pSrcTypeVersion == SrcTypeVersion;
 		}
 
 		[[nodiscard]]
 		bool dstMatches(ox::CRStringView dstTypeName, int dstTypeVersion) const noexcept final {
-			static constexpr auto DstTypeName = ox::requireModelTypeName<DstType>();
+			static const auto DstTypeName = ox::StringView(ox::requireModelTypeName<DstType>());
-			static constexpr auto DstTypeVersion = ox::requireModelTypeVersion<DstType>();
+			static const auto DstTypeVersion = ox::requireModelTypeVersion<DstType>();
-			return ox_strcmp(dstTypeName, DstTypeName) == 0
+			return dstTypeName == DstTypeName
 				 && dstTypeVersion == DstTypeVersion;
 		}
 
-		ox::Result<ox::UniquePtr<Wrap>> convertPtrToPtr(foundation::Context *ctx, Wrap *src) noexcept final {
+		ox::Result<ox::UniquePtr<Wrap>> convertPtrToPtr(foundation::Context *ctx, Wrap *src) const noexcept final {
 			auto dst = makeWrap<DstType>();
 			oxReturnError(convert(ctx, wrapCast<SrcType>(src), wrapCast<DstType>(dst.get())));
 			return ox::Result<ox::UniquePtr<Wrap>>(std::move(dst));
 		}
 
-		ox::Result<ox::UniquePtr<Wrap>> convertBuffToPtr(foundation::Context *ctx, const ox::Buffer &srcBuff) noexcept final {
+		ox::Result<ox::UniquePtr<Wrap>> convertBuffToPtr(foundation::Context *ctx, const ox::Buffer &srcBuff) const noexcept final {
-			oxRequireM(src, ox::readClaw<SrcType>(srcBuff));
+			oxRequireM(src, readAsset<SrcType>(srcBuff));
 			auto dst = makeWrap<DstType>();
 			oxReturnError(convert(ctx, &src, wrapCast<DstType>(dst.get())));
 			return ox::Result<ox::UniquePtr<Wrap>>(std::move(dst));
 		}
 
+	protected:
+		virtual ox::Error convert(foundation::Context *ctx, SrcType*, DstType*) const noexcept = 0;
+
 };
 
 ox::Result<ox::UniquePtr<Wrap>> convert(foundation::Context *ctx, const ox::Buffer &srcBuffer,
@@ -153,8 +177,9 @@ ox::Result<ox::Buffer> convertBuffToBuff(foundation::Context *ctx, const ox::Buf
 
 template<typename From, typename To, ox::ClawFormat fmt = ox::ClawFormat::Metal>
 auto transformRule(foundation::Context *ctx, ox::Buffer *buff) -> ox::Error {
-	oxRequire(hdr, ox::readClawHeader(*buff));
+	oxRequire(hdr, readAssetHeader(*buff));
-	const auto typeId = ox::buildTypeId(hdr.typeName, hdr.typeVersion, hdr.typeParams);
+	const auto typeId = ox::buildTypeId(
+			hdr.clawHdr.typeName, hdr.clawHdr.typeVersion, hdr.clawHdr.typeParams);
 	if (typeId == ox::buildTypeId<From>()) {
 		oxReturnError(foundation::convertBuffToBuff<To>(ctx, *buff, fmt).moveTo(buff));
 	}

src/nostalgia/player/app.cpp

@@ -4,41 +4,19 @@
 
 #include <nostalgia/core/core.hpp>
 #include <nostalgia/foundation/media.hpp>
+#include <nostalgia/scene/scene.hpp>
 
 using namespace nostalgia;
 
-static int spriteX = 72;
+static bool s_paused = false;
-static int spriteY = 64;
+static ox::Optional<scene::Scene> s_scene;
-static ox::StringView sprites = "nostalgia";
-static bool paused = false;
 
-static int updateHandler(core::Context *ctx) noexcept {
+static int updateHandler(core::Context*) noexcept {
 	constexpr auto sleepTime = 16;
-	if (paused) {
+	if (s_paused) {
 		return sleepTime;
 	}
-	int xmod = 0;
+	// do stuff
-	int ymod = 0;
-	if (buttonDown(ctx, core::Alpha_D) || buttonDown(ctx, core::GamePad_Right)) {
-		xmod = 2;
-	} else if (buttonDown(ctx, core::Alpha_A) || buttonDown(ctx, core::GamePad_Left)) {
-		xmod = -2;
-	}
-	if (buttonDown(ctx, core::Alpha_S) || buttonDown(ctx, core::GamePad_Down)) {
-		ymod = 2;
-	} else if (buttonDown(ctx, core::Alpha_W) || buttonDown(ctx, core::GamePad_Up)) {
-		ymod = -2;
-	}
-	if (!xmod && !ymod) {
-		spriteX += 1;
-	}
-	spriteX += xmod;
-	spriteY += ymod;
-	//constexpr ox::StringView sprites = "nostalgia";
-	for (unsigned i = 0; i < sprites.len(); ++i) {
-		const auto c = static_cast<unsigned>(sprites[i] - ('a' - 1));
-		core::setSprite(ctx, i, spriteX + 8 * (static_cast<int>(i) + 1), spriteY, c, 0, 0, 0);
-	}
 	return sleepTime;
 }
 
@@ -47,7 +25,7 @@ static void keyEventHandler(core::Context *ctx, core::Key key, bool down) noexce
 		if (key == core::Key::Alpha_Q) {
 			core::shutdown(ctx);
 		} else if (key == core::Key::Alpha_P) {
-			paused = !paused;
+			s_paused = !s_paused;
 		}
 	}
 }
@@ -55,13 +33,11 @@ static void keyEventHandler(core::Context *ctx, core::Key key, bool down) noexce
 ox::Error run(ox::UniquePtr<ox::FileSystem> fs) noexcept {
 	oxTraceInitHook();
 	oxRequireM(ctx, core::init(std::move(fs)));
-	constexpr ox::FileAddress TileSheetAddr("/TileSheets/Charset.ng");
+	constexpr ox::FileAddress SceneAddr("/Scenes/Chester.nscn");
-	constexpr ox::FileAddress PaletteAddr("/Palettes/Charset.npal");
+	oxRequire(scn, foundation::readObj<scene::SceneStatic>(ctx.get(), SceneAddr));
-	oxRequire(tsStat, ctx->rom->stat(PaletteAddr));
-	oxReturnError(core::loadSpriteTileSheet(ctx.get(), TileSheetAddr, PaletteAddr));
-	oxReturnError(core::initConsole(ctx.get()));
-	core::puts(ctx.get(), 10, 9, "DOPENESS!!!");
 	core::setUpdateHandler(ctx.get(), updateHandler);
 	core::setKeyEventHandler(ctx.get(), keyEventHandler);
+	s_scene.emplace(scn.get());
+	oxReturnError(s_scene->setupDisplay(ctx.get()));
 	return core::run(ctx.get());
 }

src/nostalgia/player/main.cpp

@@ -13,7 +13,11 @@
 
 static ox::Error run(int argc, const char **argv) noexcept {
 	ox::trace::init();
+#ifdef OX_USE_STDLIB
+	// GBA doesn't need the modules and calling this doubles the size of the
+	// binary.
 	nostalgia::loadModules();
+#endif
 	if (argc < 2) {
 		oxErr("Please provide path to project directory or OxFS file.\n");
 		return OxError(1);

src/nostalgia/scene/CMakeLists.txt

@@ -2,6 +2,7 @@
 add_library(
 	NostalgiaScene
 		scene.cpp
+		scenestatic.cpp
 		scenemodule.cpp
 		typeconv.cpp
 )
@@ -9,11 +10,12 @@ add_library(
 target_link_libraries(
 	NostalgiaScene PUBLIC
 		NostalgiaCore
+		NostalgiaGeo
 )
 
 install(
 	FILES
-		scene.hpp
+		scenestatic.hpp
 		scenemodule.hpp
 		typeconv.hpp
 	DESTINATION

src/nostalgia/scene/scene.cpp

@@ -1,11 +1,46 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
+#include <nostalgia/core/gfx.hpp>
+
 #include "scene.hpp"
 
 namespace nostalgia::scene {
 
+Scene::Scene(const SceneStatic *sceneStatic) noexcept:
+	m_sceneStatic(sceneStatic) {
+}
 
+ox::Error Scene::setupDisplay(core::Context *ctx) noexcept {
+	if (m_sceneStatic->palettes.empty()) {
+		return OxError(1, "Scene has no palettes");
+	}
+	const auto &palette = m_sceneStatic->palettes[0];
+	oxReturnError(core::loadBgTileSheet(
+				ctx, 0, m_sceneStatic->tilesheet, palette));
+	// disable all backgrounds
+	core::setBgStatus(ctx, 0);
+	for (auto layerNo = 0u; const auto &layer : m_sceneStatic->tileMapIdx) {
+		core::setBgStatus(ctx, layerNo, true);
+		core::setBgCbb(ctx, layerNo, 0);
+		auto x = 0;
+		auto y = 0;
+		auto width = m_sceneStatic->rows[layerNo];
+		for (const auto &tile : layer) {
+			core::setTile(ctx, layerNo, x, y, tile);
+			core::setTile(ctx, layerNo, x + 1, y, tile + 1);
+			core::setTile(ctx, layerNo, x, y + 1, tile + 2);
+			core::setTile(ctx, layerNo, x + 1, y + 1, tile + 3);
+			x += 2;
+			if (x >= width * 2) {
+				x = 0;
+				y += 2;
+			}
+		}
+		++layerNo;
+	}
+	return {};
+}
 
 }

src/nostalgia/scene/scene.hpp

@@ -4,104 +4,19 @@
 
 #pragma once
 
-#include <ox/fs/fs.hpp>
+#include "scenestatic.hpp"
-#include <ox/std/error.hpp>
-#include <ox/std/types.hpp>
-#include <ox/std/vector.hpp>
 
 namespace nostalgia::scene {
 
-struct TileDoc {
+class Scene {
+	private:
+		const SceneStatic *m_sceneStatic = nullptr;
 
-	constexpr static auto TypeName = "net.drinkingtea.nostalgia.scene.TileDoc";
+	public:
-	constexpr static auto TypeVersion = 1;
+		explicit Scene(const SceneStatic *sceneStatic) noexcept;
-	constexpr static auto Preloadable = true;
 
-	ox::String sheetIdx;
+		ox::Error setupDisplay(core::Context *ctx) noexcept;
-	uint8_t type = 0;
 
 };
 
-oxModelBegin(TileDoc)
-	oxModelFieldRename(sheet_idx, sheetIdx);
-	oxModelField(type);
-oxModelEnd()
-
-struct SceneDoc {
-
-	using TileMapRow = ox::Vector<TileDoc>;
-	using TileMapLayer = ox::Vector<TileMapRow>;
-	using TileMap = ox::Vector<TileMapLayer>;
-
-	constexpr static auto TypeName = "net.drinkingtea.nostalgia.scene.SceneDoc";
-	constexpr static auto TypeVersion = 1;
-	constexpr static auto Preloadable = true;
-
-	ox::FileAddress tilesheet;
-	ox::FileAddress palette;
-	TileMap tiles;
-
-};
-
-oxModelBegin(SceneDoc)
-	oxModelField(tilesheet)
-	oxModelField(palette)
-	oxModelField(tiles)
-oxModelEnd()
-
-struct Scene {
-
-	constexpr static auto TypeName = "net.drinkingtea.nostalgia.scene.Scene";
-	constexpr static auto TypeVersion = 1;
-	constexpr static auto Preloadable = true;
-
-	struct Tile {
-		uint16_t &tileMapIdx;
-		uint8_t &tileType;
-		constexpr Tile(uint16_t &pTileMapIdx, uint8_t &pTileType) noexcept:
-			tileMapIdx(pTileMapIdx),
-			tileType(pTileType) {
-		}
-	};
-	struct Layer {
-		uint16_t &columns;
-		uint16_t &rows;
-		uint16_t *tileMapIdx = nullptr;
-		uint8_t *tileType = nullptr;
-		constexpr Layer(uint16_t &pColumns,
-		                uint16_t &pRows,
-		                uint16_t *pTileMapIdx,
-		                uint8_t *pTileType) noexcept:
-			columns(pColumns),
-			rows(pRows),
-			tileMapIdx(pTileMapIdx),
-			tileType(pTileType) {
-		}
-		[[nodiscard]]
-		constexpr Tile tile(std::size_t i) const noexcept {
-			return {tileMapIdx[i], tileType[i]};
-		}
-	};
-
-	uint16_t layers = 0;
-	ox::Vector<uint16_t> columns;
-	ox::Vector<uint16_t> rows;
-	ox::Vector<ox::Vector<uint16_t>> tileMapIdx;
-	ox::Vector<ox::Vector<uint8_t>>  tileType;
-
-	[[nodiscard]]
-	constexpr Layer layer(std::size_t i) noexcept {
-		return {columns[i], rows[i], tileMapIdx[i].data(), tileType[i].data()};
-	}
-
-};
-
-oxModelBegin(Scene)
-	oxModelField(layers)
-	oxModelField(columns)
-	oxModelField(rows)
-	oxModelFieldRename(tile_map_idx, tileMapIdx)
-	oxModelFieldRename(tile_type, tileType)
-oxModelEnd()
-
 }

src/nostalgia/scene/scenemodule.cpp

@@ -4,21 +4,29 @@
 
 #include <ox/model/model.hpp>
 
+#include "scenestatic.hpp"
 #include "scenemodule.hpp"
 
 namespace nostalgia::scene {
 
 SceneModule SceneModule::mod;
 
-ox::Vector<foundation::BaseConverter*> SceneModule::converters() const noexcept {
+ox::Vector<foundation::TypeDescGenerator> SceneModule::types() const noexcept {
 	return {
-		&sceneToSceneInstaceConverter,
+		foundation::generateTypeDesc<SceneDoc>,
+		foundation::generateTypeDesc<SceneStatic>,
+	};
+}
+
+ox::Vector<const foundation::BaseConverter*> SceneModule::converters() const noexcept {
+	return {
+		&sceneDocToSceneStaticConverter,
 	};
 }
 
 ox::Vector<foundation::PackTransform> SceneModule::packTransforms() const noexcept {
 	return {
-		foundation::transformRule<SceneDoc, Scene>,
+		foundation::transformRule<SceneDoc, SceneStatic>,
 	};
 }
 

src/nostalgia/scene/scenemodule.hpp

@@ -12,12 +12,14 @@ namespace nostalgia::scene {
 
 class SceneModule: public foundation::Module {
 	private:
-		mutable SceneDocToSceneConverter sceneToSceneInstaceConverter;
+		SceneDocToSceneStaticConverter sceneDocToSceneStaticConverter;
 
 	public:
 		static SceneModule mod;
 		[[nodiscard]]
-		ox::Vector<foundation::BaseConverter*> converters() const noexcept override;
+		ox::Vector<foundation::TypeDescGenerator> types() const noexcept override;
+		[[nodiscard]]
+		ox::Vector<const foundation::BaseConverter*> converters() const noexcept override;
 		[[nodiscard]]
 		ox::Vector<foundation::PackTransform> packTransforms() const noexcept override;
 };

src/nostalgia/scene/scenestatic.cpp

@@ -0,0 +1,11 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#include "scenestatic.hpp"
+
+namespace nostalgia::scene {
+
+
+
+}

src/nostalgia/scene/scenestatic.hpp

@@ -0,0 +1,164 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/fs/fs.hpp>
+#include <ox/std/error.hpp>
+#include <ox/std/types.hpp>
+#include <ox/std/vector.hpp>
+
+#include <nostalgia/core/tilesheet.hpp>
+#include <nostalgia/geo/size.hpp>
+
+namespace nostalgia::scene {
+
+struct TileDoc {
+
+	constexpr static auto TypeName = "net.drinkingtea.nostalgia.scene.TileDoc";
+	constexpr static auto TypeVersion = 1;
+	constexpr static auto Preloadable = true;
+
+	core::SubSheetId subsheetId = -1;
+	ox::String subsheetPath;
+	uint8_t type = 0;
+
+	[[nodiscard]]
+	constexpr ox::Result<core::SubSheetId> getSubsheetId(const core::TileSheet &ts) const noexcept {
+		// prefer the already present ID
+		if (subsheetId > -1) {
+			return subsheetId;
+		}
+		return ts.getIdFor(subsheetPath);
+	}
+
+	[[nodiscard]]
+	constexpr ox::Result<ox::StringView> getSubsheetPath(
+			const core::TileSheet &ts) const noexcept {
+		// prefer the already present path
+		if (!subsheetPath.len()) {
+			return ts.getNameFor(subsheetId);
+		}
+		return ox::StringView(subsheetPath);
+	}
+
+};
+
+oxModelBegin(TileDoc)
+	oxModelFieldRename(subsheet_id, subsheetId);
+	oxModelFieldRename(subsheet_path, subsheetPath);
+	oxModelField(type);
+oxModelEnd()
+
+struct SceneDoc {
+
+	using TileMapRow = ox::Vector<TileDoc>;
+	using TileMapLayer = ox::Vector<TileMapRow>;
+	using TileMap = ox::Vector<TileMapLayer>;
+
+	constexpr static auto TypeName = "net.drinkingtea.nostalgia.scene.SceneDoc";
+	constexpr static auto TypeVersion = 1;
+	constexpr static auto Preloadable = true;
+
+	ox::String tilesheet; // path
+	ox::Vector<ox::String> palettes; // paths
+	TileMap tiles;
+
+	[[nodiscard]]
+	constexpr geo::Size size(std::size_t layerIdx) const noexcept {
+		const auto &layer = this->tiles[layerIdx];
+		const auto rowCnt = static_cast<int>(layer.size());
+		if (!rowCnt) {
+			return {};
+		}
+		auto colCnt = layer[0].size();
+		// find shortest row (they should all be the same, but you know this data
+		// could come from a file)
+		for (const auto &row : layer) {
+			colCnt = ox::min(colCnt, row.size());
+		}
+		return {static_cast<int>(colCnt), rowCnt};
+	}
+};
+
+oxModelBegin(SceneDoc)
+	oxModelField(tilesheet)
+	oxModelField(palettes)
+	oxModelField(tiles)
+oxModelEnd()
+
+struct SceneStatic {
+
+	constexpr static auto TypeName = "net.drinkingtea.nostalgia.scene.SceneStatic";
+	constexpr static auto TypeVersion = 1;
+	constexpr static auto Preloadable = true;
+
+	struct Tile {
+		uint16_t &tileMapIdx;
+		uint8_t &tileType;
+		constexpr Tile(uint16_t *pTileMapIdx, uint8_t *pTileType) noexcept:
+			tileMapIdx(*pTileMapIdx),
+			tileType(*pTileType) {
+		}
+	};
+	struct Layer {
+		uint16_t &columns;
+		uint16_t &rows;
+		ox::Vector<uint16_t> &tileMapIdx;
+		ox::Vector<uint8_t> &tileType;
+		constexpr Layer(
+				uint16_t *pColumns,
+				uint16_t *pRows,
+				ox::Vector<uint16_t> *pTileMapIdx,
+				ox::Vector<uint8_t> *pTileType) noexcept:
+			columns(*pColumns),
+			rows(*pRows),
+			tileMapIdx(*pTileMapIdx),
+			tileType(*pTileType) {
+		}
+		[[nodiscard]]
+		constexpr Tile tile(std::size_t i) noexcept {
+			return {&tileMapIdx[i], &tileType[i]};
+		}
+		constexpr auto setDimensions(geo::Size dim) noexcept {
+			columns = dim.width;
+			rows = dim.height;
+			const auto tileCnt = static_cast<unsigned>(columns * rows);
+			tileMapIdx.resize(tileCnt);
+			tileType.resize(tileCnt);
+		}
+	};
+
+	ox::FileAddress tilesheet;
+	ox::Vector<ox::FileAddress> palettes;
+	// tile layer data
+	ox::Vector<uint16_t> columns;
+	ox::Vector<uint16_t> rows;
+	ox::Vector<ox::Vector<uint16_t>> tileMapIdx;
+	ox::Vector<ox::Vector<uint8_t>>  tileType;
+
+	[[nodiscard]]
+	constexpr Layer layer(std::size_t i) noexcept {
+		return {&columns[i], &rows[i], &tileMapIdx[i], &tileType[i]};
+	}
+
+	constexpr auto setLayerCnt(std::size_t layerCnt) noexcept {
+		this->columns.resize(layerCnt);
+		this->rows.resize(layerCnt);
+		this->tileMapIdx.resize(layerCnt);
+		this->tileType.resize(layerCnt);
+	}
+
+};
+
+oxModelBegin(SceneStatic)
+	oxModelField(tilesheet)
+	oxModelField(palettes)
+	oxModelField(columns)
+	oxModelField(rows)
+	oxModelFieldRename(tile_map_idx, tileMapIdx)
+	oxModelFieldRename(tile_type, tileType)
+oxModelEnd()
+
+}

src/nostalgia/scene/typeconv.cpp

@@ -2,13 +2,41 @@
  * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
+#include <nostalgia/core/gfx.hpp>
+#include <nostalgia/foundation/media.hpp>
+
 #include "typeconv.hpp"
 
 namespace nostalgia::scene {
 
-// Type converters
+ox::Error SceneDocToSceneStaticConverter::convert(
-
+		foundation::Context *ctx,
-ox::Error SceneDocToSceneConverter::convert(foundation::Context*, SceneDoc *, Scene *) noexcept {
+		SceneDoc *src,
+		SceneStatic *dst) const noexcept {
+	oxRequire(ts, foundation::readObj<core::TileSheet>(ctx, src->tilesheet));
+	const auto layerCnt = src->tiles.size();
+	dst->setLayerCnt(layerCnt);
+	dst->tilesheet = ox::FileAddress(src->tilesheet);
+	dst->palettes.reserve(src->palettes.size());
+	for (const auto &pal : src->palettes) {
+		dst->palettes.emplace_back(pal);
+	}
+	for (auto layerIdx = 0u; const auto &layer : src->tiles) {
+		const auto layerDim = src->size(layerIdx);
+		auto dstLayer = dst->layer(layerIdx);
+		dstLayer.setDimensions(layerDim);
+		for (auto tileIdx = 0u; const auto &row : layer) {
+			for (const auto &srcTile : row) {
+				auto dstTile = dstLayer.tile(tileIdx);
+				dstTile.tileType = srcTile.type;
+				oxRequire(path, srcTile.getSubsheetPath(*ts));
+				oxRequire(mapIdx, ts->getTileOffset(path));
+				dstTile.tileMapIdx = static_cast<uint16_t>(mapIdx);
+				++tileIdx;
+			}
+		}
+		++layerIdx;
+	}
 	return {};
 }
 

src/nostalgia/scene/typeconv.hpp

@@ -6,12 +6,12 @@
 
 #include <nostalgia/foundation/typeconv.hpp>
 
-#include "scene.hpp"
+#include "scenestatic.hpp"
 
 namespace nostalgia::scene {
 
-struct SceneDocToSceneConverter: public foundation::Converter<SceneDoc, Scene> {
+class SceneDocToSceneStaticConverter: public foundation::Converter<SceneDoc, SceneStatic> {
-	ox::Error convert(foundation::Context*, SceneDoc *src, Scene *dst) noexcept final;
+	ox::Error convert(foundation::Context*, SceneDoc *src, SceneStatic *dst) const noexcept final;
 };
 
 }

src/nostalgia/studio/lib/configio.hpp

@@ -22,7 +22,7 @@ ox::String configPath(const core::Context *ctx) noexcept;
 
 template<typename T>
 ox::Result<T> readConfig(core::Context *ctx, ox::CRStringView name) noexcept {
-	oxAssert(ox_strcmp(name, ""), "Config type has no TypeName");
+	oxAssert(name != "", "Config type has no TypeName");
 	const auto path = ox::sfmt("/{}.json", name);
 	ox::PassThroughFS fs(configPath(ctx));
 	const auto [buff, err] = fs.read(path);
@@ -41,7 +41,7 @@ ox::Result<T> readConfig(core::Context *ctx) noexcept {
 
 template<typename T>
 ox::Error writeConfig(core::Context *ctx, ox::CRStringView name, T *data) noexcept {
-	oxAssert(ox_strcmp(name, ""), "Config type has no TypeName");
+	oxAssert(name != "", "Config type has no TypeName");
 	const auto path = ox::sfmt("/{}.json", name);
 	ox::PassThroughFS fs(configPath(ctx));
 	if (const auto err = fs.mkdir("/", true)) {
@@ -66,8 +66,9 @@ ox::Error writeConfig(core::Context *ctx, T *data) noexcept {
 template<typename T, typename Func>
 void openConfig(core::Context *ctx, const auto &name, Func f) noexcept {
 	oxAssert(name != "", "Config type has no TypeName");
-	const auto c = readConfig<T>(ctx, name);
+	const auto [c, err] = readConfig<T>(ctx, name);
-	f(&c.value);
+	oxLogError(err);
+	f(&c);
 }
 
 template<typename T, typename Func>
@@ -79,9 +80,10 @@ void openConfig(core::Context *ctx, Func f) noexcept {
 template<typename T, typename Func>
 void editConfig(core::Context *ctx, const auto &name, Func f) noexcept {
 	oxAssert(ox_strcmp(name, ""), "Config type has no TypeName");
-	auto c = readConfig<T>(ctx, name);
+	auto [c, err] = readConfig<T>(ctx, name);
-	f(&c.value);
+	oxLogError(err);
-	oxLogError(writeConfig(ctx, name, &c.value));
+	f(&c);
+	oxLogError(writeConfig(ctx, name, &c));
 }
 
 template<typename T, typename Func>

src/nostalgia/studio/lib/itemmaker.hpp

@@ -1,13 +1,16 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
 #pragma once
 
 #include <ox/claw/claw.hpp>
 
+#include <nostalgia/foundation/media.hpp>
 #include <nostalgia/core/context.hpp>
 
+#include "context.hpp"
+
 namespace nostalgia::studio {
 
 class ItemMaker {
@@ -45,8 +48,9 @@ class ItemMakerT: public ItemMaker {
 			fmt(pFmt) {
 		}
 		ox::Error write(core::Context *ctx, ox::CRStringView pName) const noexcept override {
-			const auto path = ox::sfmt("{}/{}.{}", parentDir, pName, fileExt);
+			const auto path = ox::sfmt("/{}/{}.{}", parentDir, pName, fileExt);
 			auto sctx = core::applicationData<studio::StudioContext>(ctx);
+			foundation::createUuidMapping(ctx, path, ox::UUID::generate().unwrap());
 			return sctx->project->writeObj(path, &item, fmt);
 		}
 };

src/nostalgia/studio/lib/project.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
 #include <algorithm>
@@ -7,12 +7,27 @@
 
 #include <ox/std/std.hpp>
 
+#include <nostalgia/foundation/module.hpp>
+
 #include "project.hpp"
 
 namespace nostalgia::studio {
 
-Project::Project(ox::FileSystem *fs, ox::String path) noexcept: m_path(std::move(path)), m_typeStore(fs), m_fs(fs) {
+static void generateTypes(ox::TypeStore *ts) noexcept {
+	for (const auto mod : *foundation::modules()) {
+		for (auto gen : mod->types()) {
+			oxLogError(gen(ts));
+		}
+	}
+}
+
+Project::Project(foundation::Context *ctx, ox::String path) noexcept:
+	m_path(std::move(path)),
+	m_typeStore(ctx->rom.get()),
+	m_fs(ctx->rom.get()),
+	m_ctx(ctx) {
 	oxTracef("nostalgia::studio", "Project: {}", m_path);
+	generateTypes(&m_typeStore);
 	buildFileIndex();
 }
 
@@ -68,15 +83,24 @@ void Project::indexFile(ox::CRStringView path) noexcept {
 }
 
 ox::Error Project::writeBuff(const ox::StringView &path, const ox::Buffer &buff) noexcept {
+	constexpr auto HdrSz = 40;
+	ox::Buffer outBuff;
+	outBuff.reserve(buff.size() + HdrSz);
+	ox::BufferWriter writer(&outBuff);
+	const auto [uuid, err] =  m_ctx->pathToUuid.at(path);
+	if (!err) {
+		oxReturnError(foundation::writeUuidHeader(&writer, *uuid));
+	}
+	oxReturnError(writer.write(buff.data(), buff.size()));
 	const auto newFile = m_fs->stat(path).error != 0;
-	oxReturnError(m_fs->write(path, buff.data(), buff.size(), ox::FileType::NormalFile));
+	oxReturnError(m_fs->write(path, outBuff.data(), outBuff.size(), ox::FileType::NormalFile));
 	if (newFile) {
 		fileAdded.emit(path);
 		indexFile(path);
 	} else {
 		fileUpdated.emit(path);
 	}
-	return OxError(0);
+	return {};
 }
 
 ox::Result<ox::Buffer> Project::loadBuff(const ox::String &path) const noexcept {

src/nostalgia/studio/lib/project.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
 #pragma once
@@ -13,6 +13,7 @@
 #include <ox/std/hashmap.hpp>
 
 #include <nostalgia/core/typestore.hpp>
+#include <nostalgia/foundation/media.hpp>
 
 #include "nostalgiastudio_export.h"
 
@@ -42,10 +43,11 @@ class NOSTALGIASTUDIO_EXPORT Project {
 		ox::String m_path;
 		mutable core::TypeStore m_typeStore;
 		mutable ox::FileSystem *m_fs = nullptr;
+		foundation::Context *m_ctx = nullptr;
 		ox::HashMap<ox::String, ox::Vector<ox::String>> m_fileExtFileMap;
 
 	public:
-		explicit Project(ox::FileSystem *fs, ox::String path) noexcept;
+		explicit Project(foundation::Context *ctx, ox::String path) noexcept;
 
 		ox::Error create() noexcept;
 
@@ -118,7 +120,7 @@ ox::Error Project::writeObj(const ox::String &path, const T *obj, ox::ClawFormat
 		// replace garbage last character with new line
 		typeOut.back().value = '\n';
 		// write to FS
-		const auto typePath = ox::sfmt("{}/{}", descPath, buildTypeId(*t));
+		const auto typePath = ox::sfmt("/{}/{}", descPath, buildTypeId(*t));
 		oxReturnError(writeBuff(typePath, typeOut));
 	}
 	fileUpdated.emit(path);
@@ -129,9 +131,9 @@ template<typename T>
 ox::Result<T> Project::loadObj(const ox::String &path) const noexcept {
 	oxRequire(buff, loadBuff(path));
 	if constexpr (ox::is_same_v<T, ox::ModelObject>) {
-		return ox::readClaw(&m_typeStore, buff);
+		return foundation::readAsset(&m_typeStore, buff);
 	} else {
-		return ox::readClaw<T>(buff);
+		return foundation::readAsset<T>(buff);
 	}
 }
 

src/nostalgia/studio/main.cpp

@@ -2,8 +2,11 @@
  * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
+#include <ctime>
+
 #include <ox/logconn/logconn.hpp>
 #include <ox/std/trace.hpp>
+#include <ox/std/uuid.hpp>
 
 #include <nostalgia/appmodules/appmodules.hpp>
 #include <nostalgia/core/core.hpp>
@@ -54,16 +57,15 @@ static ox::Error run(ox::UniquePtr<ox::FileSystem> fs) noexcept {
 	return core::run(ctx.get());
 }
 
-static ox::Error run(int argc, const char **argv) noexcept {
+static ox::Error run(int, const char**) noexcept {
 	ox::trace::init();
+	const auto time = std::time(nullptr);
+	ox::UUID::seedGenerator({
+		static_cast<uint64_t>(time),
+		static_cast<uint64_t>(time << 1)
+	});
 	loadModules();
-	if (argc >= 2) {
+	return run(ox::UniquePtr<ox::FileSystem>(nullptr));
-		const auto path = argv[1];
-		oxRequireM(fs, foundation::loadRomFs(path));
-		return run(std::move(fs));
-	} else {
-		return run(ox::UniquePtr<ox::FileSystem>(nullptr));
-	}
 }
 
 }

src/nostalgia/studio/newmenu.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
 #include <imgui.h>
@@ -108,7 +108,8 @@ void NewMenu::drawLastPageButtons(core::Context *ctx) noexcept {
 }
 
 void NewMenu::finish(core::Context *ctx) noexcept {
-	const auto err = m_types[static_cast<std::size_t>(m_selectedType)]->write(ctx, m_itemName);
+	const auto itemName = ox::String(m_itemName);
+	const auto err = m_types[static_cast<std::size_t>(m_selectedType)]->write(ctx, itemName);
 	if (err) {
 		oxLogError(err);
 		return;

src/nostalgia/studio/studioapp.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
 #include <imgui.h>
@@ -286,9 +286,9 @@ void StudioUI::save() noexcept {
 
 ox::Error StudioUI::openProject(ox::CRStringView path) noexcept {
 	oxRequireM(fs, foundation::loadRomFs(path));
-	m_ctx->rom = std::move(fs);
+	oxReturnError(foundation::setRomFs(m_ctx, std::move(fs)));
 	core::setWindowTitle(m_ctx, ox::sfmt("Nostalgia Studio - {}", path));
-	m_project = ox::make_unique<studio::Project>(m_ctx->rom.get(), path);
+	m_project = ox::make_unique<studio::Project>(m_ctx, path);
 	auto sctx = applicationData<studio::StudioContext>(m_ctx);
 	sctx->project = m_project.get();
 	m_project->fileAdded.connect(m_projectExplorer.get(), &ProjectExplorer::refreshProjectTreeModel);

src/nostalgia/tools/pack.cpp

@@ -11,6 +11,7 @@
 #include <nostalgia/appmodules/appmodules.hpp>
 #include <nostalgia/core/typestore.hpp>
 #include <nostalgia/foundation/foundation.hpp>
+#include <nostalgia/foundation/module.hpp>
 
 #include "pack/pack.hpp"
 
@@ -44,6 +45,15 @@ static ox::Result<ox::Buffer> readFileBuff(ox::CRStringView path) noexcept {
 	}
 }
 
+static ox::Error generateTypes(ox::TypeStore *ts) noexcept {
+	for (const auto mod : *foundation::modules()) {
+		for (auto gen : mod->types()) {
+			oxReturnError(gen(ts));
+		}
+	}
+	return {};
+}
+
 static ox::Error run(const ox::ClArgs &args) noexcept {
 	loadModules();
 	const auto argSrc = args.getString("src", "");
@@ -59,8 +69,9 @@ static ox::Error run(const ox::ClArgs &args) noexcept {
 	ox::Buffer dstBuff(32 * ox::units::MB);
 	oxReturnError(ox::FileSystem32::format(dstBuff.data(), dstBuff.size()));
 	ox::FileSystem32 dst(ox::FileStore32(dstBuff.data(), dstBuff.size()));
-	const auto ctx = foundation::init(ox::make_unique<ox::PassThroughFS>(argSrc), "nost-pack");
+	oxRequire(ctx, foundation::init(ox::make_unique<ox::PassThroughFS>(argSrc), "nost-pack"));
 	core::TypeStore ts(ctx->rom.get());
+	oxReturnError(generateTypes(&ts));
 	oxReturnError(pack(ctx.get(), &ts, &dst));
 	oxRequireM(pl, GbaPreloader::make());
 	oxReturnError(preload(&ts, &dst, pl.get()));

src/nostalgia/tools/pack/pack.cpp

@@ -7,15 +7,13 @@
 #include <ox/model/descwrite.hpp>
 #include <ox/model/modelvalue.hpp>
 
-#include <nostalgia/core/gfx.hpp>
-#include <nostalgia/core/typestore.hpp>
 #include <nostalgia/foundation/media.hpp>
 
 #include "pack.hpp"
 
 namespace nostalgia {
 
-static ox::Error pathToInode(ox::FileSystem *dest, ox::ModelObject *obj) noexcept {
+static ox::Error pathToInode(foundation::Context *ctx, ox::FileSystem *dest, ox::ModelObject *obj) noexcept {
 	auto &o = *obj;
 	auto type = static_cast<ox::FileAddressType>(o["type"].get<int8_t>());
 	auto &data = o["data"].get<ox::ModelUnion>();
@@ -31,33 +29,52 @@ static ox::Error pathToInode(ox::FileSystem *dest, ox::ModelObject *obj) noexcep
 		case ox::FileAddressType::None:
 			return {};
 	}
+	if (beginsWith(path, "uuid://")) {
+		const auto uuid = ox::StringView(path).substr(7);
+		path = ctx->uuidToPath[uuid];
+	}
 	oxRequire(s, dest->stat(path));
 	oxReturnError(o["type"].set(static_cast<int8_t>(ox::FileAddressType::Inode)));
 	return data.set(2, s.inode);
 }
 
-/**
+static ox::Error transformFileAddressesObj(foundation::Context *ctx, ox::FileSystem *dest, ox::ModelObject *obj) noexcept;
- * Convert path references in Claw data to inodes to save space
+static ox::Error transformFileAddressesVec(foundation::Context *ctx, ox::FileSystem *dest, ox::ModelValueVector *v) noexcept;
- * @param buff buffer holding file
+
- * @return error
+static ox::Error transformFileAddresses(foundation::Context *ctx, ox::FileSystem *dest, ox::ModelValue *v) noexcept {
- */
+	if (v->type() == ox::ModelValue::Type::Object) {
-static ox::Error transformFileAddresses(ox::FileSystem *dest, ox::ModelObject *obj) noexcept {
+		auto &obj = v->get<ox::ModelObject>();
-	for (auto &f : *obj) {
+		return transformFileAddressesObj(ctx, dest, &obj);
-		auto &v = f->value;
+	} else if (v->type() == ox::ModelValue::Type::Vector) {
-		if (v.type() != ox::ModelValue::Type::Object) {
+		auto &vec = v->get<ox::ModelValueVector>();
-			continue;
+		return transformFileAddressesVec(ctx, dest, &vec);
-		}
-		auto &o = v.get<ox::ModelObject>();
-		if (o.typeName() == "net.drinkingtea.ox.FileAddress" && o.typeVersion() == 1) {
-			oxReturnError(pathToInode(dest, &o));
-		} else {
-			oxReturnError(transformFileAddresses(dest, &o));
-		}
 	}
 	return {};
 }
 
-static ox::Error doTransformations(foundation::Context *ctx, core::TypeStore *ts, ox::FileSystem *dest, ox::CRStringView filePath) noexcept {
+static ox::Error transformFileAddressesVec(foundation::Context *ctx, ox::FileSystem *dest, ox::ModelValueVector *v) noexcept {
+	for (auto &f : *v) {
+		oxReturnError(transformFileAddresses(ctx, dest, &f));
+	}
+	return {};
+}
+
+/**
+ * Convert path references in Claw data to inodes to save space
+ * @return error
+ */
+static ox::Error transformFileAddressesObj(foundation::Context *ctx, ox::FileSystem *dest, ox::ModelObject *obj) noexcept {
+	if (obj->typeName() == "net.drinkingtea.ox.FileAddress" && obj->typeVersion() == 1) {
+		return pathToInode(ctx, dest, obj);
+	}
+	for (auto &f : *obj) {
+		auto &v = f->value;
+		oxReturnError(transformFileAddresses(ctx, dest, &v));
+	}
+	return {};
+}
+
+static ox::Error doTransformations(foundation::Context *ctx, ox::TypeStore *ts, ox::FileSystem *dest, ox::CRStringView filePath) noexcept {
 	// load file
 	oxRequire(s, dest->stat(filePath));
 	// do transformations
@@ -66,8 +83,8 @@ static ox::Error doTransformations(foundation::Context *ctx, core::TypeStore *ts
 		oxReturnError(tr(ctx, &buff));
 	}
 	// transform FileAddresses
-	oxRequireM(obj, ox::readClaw(ts, buff));
+	oxRequireM(obj, foundation::readAsset(ts, buff));
-	oxReturnError(transformFileAddresses(dest, &obj));
+	oxReturnError(transformFileAddressesObj(ctx, dest, &obj));
 	oxReturnError(ox::writeClaw(&obj).moveTo(&buff));
 	// write file to dest
 	oxReturnError(dest->write(s.inode, buff.data(), buff.size()));
@@ -76,7 +93,7 @@ static ox::Error doTransformations(foundation::Context *ctx, core::TypeStore *ts
 
 // claw file transformations are broken out from copy because path to inode
 // transformations need to be done after the copy to the new FS is complete
-static ox::Error transformClaw(foundation::Context *ctx, core::TypeStore *ts, ox::FileSystem *dest, ox::CRStringView path) noexcept {
+static ox::Error transformClaw(foundation::Context *ctx, ox::TypeStore *ts, ox::FileSystem *dest, ox::CRStringView path) noexcept {
 	// copy
 	oxTracef("pack::transformClaw", "path: {}", path);
 	oxRequire(fileList, dest->ls(path));
@@ -108,9 +125,8 @@ struct VerificationPair {
 	}
 };
 
-static ox::Error copy(ox::FileSystem *src, ox::FileSystem *dest, ox::CRStringView path) noexcept {
+static ox::Error copy(ox::FileSystem *src, ox::FileSystem *dest, ox::CRStringView path, ox::Vector<VerificationPair> *verificationPairs) noexcept {
 	oxOutf("copying directory: {}\n", path);
-	ox::Vector<VerificationPair> verificationPairs;
 	// copy
 	oxRequire(fileList, src->ls(path));
 	for (const auto &name : fileList) {
@@ -122,7 +138,7 @@ static ox::Error copy(ox::FileSystem *src, ox::FileSystem *dest, ox::CRStringVie
 		oxRequire(stat, src->stat(currentFile));
 		if (stat.fileType == ox::FileType::Directory) {
 			oxReturnError(dest->mkdir(currentFile, true));
-			oxReturnError(copy(src, dest, currentFile + '/'));
+			oxReturnError(copy(src, dest, currentFile + '/', verificationPairs));
 		} else {
 			// load file
 			oxRequireM(buff, src->read(currentFile));
@@ -130,10 +146,17 @@ static ox::Error copy(ox::FileSystem *src, ox::FileSystem *dest, ox::CRStringVie
 			oxOutf("writing {}\n", currentFile);
 			oxReturnError(dest->write(currentFile, buff.data(), buff.size()));
 			oxReturnError(verifyFile(dest, currentFile, buff));
-			verificationPairs.emplace_back(std::move(currentFile), std::move(buff));
+			verificationPairs->emplace_back(std::move(currentFile), std::move(buff));
 		}
 	}
+	return {};
+}
+
+static ox::Error copyFS(ox::FileSystem *src, ox::FileSystem *dest) noexcept {
+	ox::Vector<VerificationPair> verificationPairs;
+	oxReturnError(copy(src, dest, "/", &verificationPairs));
 	// verify all at once in addition to right after the files are written
+	oxOutf("Verifying completed destination\n");
 	for (const auto &v : verificationPairs) {
 		oxReturnError(verifyFile(dest, v.path, v.buff));
 	}
@@ -141,11 +164,14 @@ static ox::Error copy(ox::FileSystem *src, ox::FileSystem *dest, ox::CRStringVie
 }
 
 // transformations need to be done after the copy to the new FS is complete
-static ox::Error preloadObj(core::TypeStore *ts, ox::FileSystem *romFs, GbaPreloader *pl, ox::CRStringView path) noexcept {
+static ox::Error preloadObj(
+		ox::TypeStore *ts, ox::FileSystem *romFs,
+		GbaPreloader *pl, ox::CRStringView path) noexcept {
 	// load file
 	oxRequireM(buff, romFs->read(path));
-	oxRequireM(obj, ox::readClaw(ts, buff));
+	oxRequireM(obj, foundation::readAsset(ts, buff));
 	if (obj.type()->preloadable) {
+		oxOutf("preloading {}\n", path);
 		// preload
 		oxRequire(a, pl->startAlloc(ox::sizeOf<GbaPlatSpec>(&obj)));
 		const auto err = ox::preload<GbaPlatSpec, decltype(obj)>(pl, &obj);
@@ -163,7 +189,7 @@ static ox::Error preloadObj(core::TypeStore *ts, ox::FileSystem *romFs, GbaPrelo
 
 // claw file transformations are broken out because path to inode
 // transformations need to be done after the copy to the new FS is complete
-static ox::Error preloadDir(core::TypeStore *ts, ox::FileSystem *romFs, GbaPreloader *pl, ox::CRStringView path) noexcept {
+static ox::Error preloadDir(ox::TypeStore *ts, ox::FileSystem *romFs, GbaPreloader *pl, ox::CRStringView path) noexcept {
 	// copy
 	oxTracef("pack::preload", "path: {}", path);
 	oxRequire(fileList, romFs->ls(path));
@@ -202,14 +228,15 @@ ox::Error appendBinary(ox::Buffer *binBuff, ox::Buffer *fsBuff, GbaPreloader *pl
 	return {};
 }
 
-ox::Error pack(foundation::Context *ctx, core::TypeStore *ts, ox::FileSystem *dest) noexcept {
+ox::Error pack(foundation::Context *ctx, ox::TypeStore *ts, ox::FileSystem *dest) noexcept {
-	oxReturnError(copy(ctx->rom.get(), dest, "/"));
+	oxReturnError(copyFS(ctx->rom.get(), dest));
-	oxReturnError(ox::buildTypeDef<core::CompactTileSheet>(ts));
+	oxOut("Doing transforms\n");
 	oxReturnError(transformClaw(ctx, ts, dest, "/"));
 	return {};
 }
 
-ox::Error preload(core::TypeStore *ts, ox::FileSystem *src, GbaPreloader *pl) noexcept {
+ox::Error preload(ox::TypeStore *ts, ox::FileSystem *src, GbaPreloader *pl) noexcept {
+	oxOut("Preloading\n");
 	return preloadDir(ts, src, pl, "/");
 }
 

src/nostalgia/tools/pack/pack.hpp

@@ -11,10 +11,6 @@ namespace foundation {
 class Context;
 }
 
-namespace core {
-class TypeStore;
-}
-
 struct GbaPlatSpec {
 	using PtrType = uint32_t;
 	using size_t = uint32_t;
@@ -95,8 +91,8 @@ using GbaPreloader = ox::Preloader<GbaPlatSpec>;
 
 ox::Error appendBinary(ox::Buffer *binBuff, ox::Buffer *fsBuff, GbaPreloader *pl) noexcept;
 
-auto pack(foundation::Context *ctx, core::TypeStore *ts, ox::FileSystem *dest) noexcept -> ox::Error;
+auto pack(foundation::Context *ctx, ox::TypeStore *ts, ox::FileSystem *dest) noexcept -> ox::Error;
 
-auto preload(core::TypeStore *ts, ox::FileSystem *src, GbaPreloader *ph) noexcept -> ox::Error;
+auto preload(ox::TypeStore *ts, ox::FileSystem *src, GbaPreloader *ph) noexcept -> ox::Error;
 
 }

src/nostalgia/world/CMakeLists.txt

@@ -1,23 +0,0 @@
-
-add_library(
-	NostalgiaWorld
-		world.cpp
-)
-
-target_link_libraries(
-	NostalgiaWorld PUBLIC
-		NostalgiaCore
-		OxMetalClaw
-)
-
-#install(TARGETS NostalgiaCommon DESTINATION lib)
-install(
-	FILES
-		world.hpp
-	DESTINATION
-		include/nostalgia/world
-)
-
-if(NOSTALGIA_BUILD_STUDIO)
-	#add_subdirectory(studio)
-endif()

src/nostalgia/world/studio/CMakeLists.txt

@@ -1,20 +0,0 @@
-
-add_library(
-	NostalgiaWorld-Studio OBJECT
-		consts.cpp
-		newworldwizard.cpp
-		worldstudioplugin.cpp
-		worldeditor.cpp
-)
-
-target_link_libraries(
-	NostalgiaWorld-Studio
-		NostalgiaStudio
-)
-
-install(
-	TARGETS
-		NostalgiaWorld-Studio
-	LIBRARY DESTINATION
-		${NOSTALGIA_DIST_MODULE}
-)

src/nostalgia/world/studio/consts.cpp

@@ -1,11 +0,0 @@
-/*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
- */
-
-#include "consts.hpp"
-
-namespace nostalgia::world {
-
-QString PATH_ZONES = "/World/Zones/";
-
-}

src/nostalgia/world/studio/consts.hpp

@@ -1,13 +0,0 @@
-/*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
- */
-
-#pragma once
-
-#include <QString>
-
-namespace nostalgia::world {
-
-extern QString PATH_ZONES;
-
-}

src/nostalgia/world/studio/newworldwizard.cpp

@@ -1,29 +0,0 @@
-/*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
- */
-
-#include <QDebug>
-
-#include "consts.hpp"
-#include "newworldwizard.hpp"
-
-namespace nostalgia::world {
-
-using namespace studio;
-
-const QString NewWorldWizard::FIELD_WORLD_PATH = "World.WorldPath";
-
-NewWorldWizard::NewWorldWizard(const Context *ctx) {
-	addLineEdit(tr("&Name:"), FIELD_WORLD_PATH, "", [this, ctx](QString worldName) {
-			worldName = PATH_ZONES + worldName;
-			auto exists = ctx->project->exists(worldName);
-			if (exists) {
-				this->showValidationError(tr("World already exists: %1").arg(worldName));
-				return 1;
-			}
-			return 0;
-		}
-	);
-}
-
-}

src/nostalgia/world/studio/newworldwizard.hpp

@@ -1,21 +0,0 @@
-/*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
- */
-
-#pragma once
-
-#include <QPluginLoader>
-
-#include <nostalgia/studio/studio.hpp>
-
-namespace nostalgia::world {
-
-struct NewWorldWizard: public studio::WizardFormPage {
-
-	static const QString FIELD_WORLD_PATH;
-
-	NewWorldWizard(const studio::Context *ctx);
-
-};
-
-}